Introduction
As the world becomes increasingly interconnected, international internships have become a vital component of career development for students and young professionals. An internship letter is a critical document that helps individuals secure these valuable opportunities. This article provides 16+ professionally crafted internship letter examples tailored for international internship experiences in 2026.
These letters are designed to help you stand out in a competitive global job market. Whether you’re applying for an internship, expressing gratitude, or confirming your participation, these templates will guide you in crafting polished and professional correspondence.
In this comprehensive guide, we cover a wide range of scenarios, from application letters to acceptance letters, ensuring you’re prepared for every step of your international internship journey.
1. Internship Application Letter for International Program
John Doe
123 Maple Street
New York, NY 10001
United States
February 15, 2026
Dr. Jane Smith
Director of International Internships
Global Futures Inc.
456 Champs-Élysées
Paris, France 75008
Dear Dr. Smith,
I am writing to express my strong interest in the international internship program at Global Futures Inc. for the 2026 term. As a third-year business student at Harvard University, I am eager to gain hands-on experience in a global setting.
My academic background in international business, coupled with my proficiency in French, makes me a ideal candidate for your program. I am particularly drawn to the opportunity to work on cross-border marketing strategies.
Thank you for considering my application. I look forward to the possibility of contributing to your team and gaining invaluable international experience.
Sincerely,
John Doe
2. Letter of Recommendation for International Internship
Professor Emily Johnson
Department of Economics
Stanford University
Stanford, CA 94305
March 10, 2026
Admissions Committee
International Internship Program
University of Cambridge
Cambridge, CB2 1TN
United Kingdom
Dear Members of the Admissions Committee,
It is with great enthusiasm that I write this letter of recommendation for Ms. Sarah Thompson, who has applied for your prestigious international internship program. I have had the pleasure of teaching and mentoring Sarah during her time at Stanford University.
Sarah’s academic excellence and her exceptional ability to work in team-oriented environments make her an outstanding candidate. Her research on global economic trends demonstrates her deep understanding of international markets.
Please feel free to contact me at (650) 123-4567 if you require any further information.
Sincerely,
Professor Emily Johnson
3. Internship Acceptance Letter
Michael Brown
789 Oak Lane
London, NW1 7TH
United Kingdom
April 5, 2026
Ms. Laura Garcia
Internship Coordinator
Tech Innovators Ltd.
321 La Rambla
Barcelona, Spain 08002
Dear Ms. Garcia,
I am delighted to formally accept the offer to join Tech Innovators Ltd. as an international intern for the 2026 program. I am truly excited about the opportunity to contribute to your innovative projects and gain valuable industry experience.
I confirm my availability to start on June 1, 2026, and will ensure all necessary documents, including my visa and health insurance, are in order prior to my arrival in Barcelona.
Thank you for this incredible opportunity. I look forward to working with your team.
Sincerely,
Michael Brown
4. Letter of Gratitude for Internship Opportunity
Sophia Martinez
456 Pine Street
Toronto, ON M4V 2L2
Canada
August 20, 2026
Mr. David Wilson
CEO
Green Energy Solutions
789 Sydney Harbour
Sydney, NSW 2000
Australia
Dear Mr. Wilson,
I am writing to express my heartfelt gratitude for the opportunity to intern at Green Energy Solutions this summer. My experience in Sydney has been nothing short of transformative.
The exposure I gained in renewable energy projects and the mentorship I received from your team have significantly enhanced my professional and personal growth. I am deeply grateful for the trust you placed in me.
Thank you once again for this invaluable experience. I hope to stay connected and contribute to your organization’s mission in the future.
Sincerely,
Sophia Martinez
5. Request for Internship Extension
Daniel Lee
321 Rose Avenue
Singapore 238456
September 15, 2026
Ms. Helen Green
HR Manager
Global Tech Corp.
654 Tokyo Street
Tokyo, Japan 100-0001
Dear Ms. Green,
I hope this message finds you well. I am writing to request an extension of my internship period at Global Tech Corp. My current term is set to end on October 31, 2026, and I would like to extend it until December 31, 2026.
I have thoroughly enjoyed my time at Global Tech Corp. and believe that an extended period will allow me to complete my current project and gain even more valuable experience.
Thank you for considering my request. I am available to discuss this further at your convenience.
Sincerely,
Daniel Lee
6. Internship Offer Letter
Ms. Olivia Bennett
HR Director
World Health Organization
123 Geneva Avenue
Geneva, CH-1201
Switzerland
October 10, 2026
Mr. James Carter
456 London Road
London, NW1 7TH
United Kingdom
Dear Mr. Carter,
We are pleased to offer you the position of International Intern at the World Health Organization, commencing on January 2, 2027, and concluding on June 30, 2027.
This internship will provide you with the opportunity to work on global health initiatives and collaborate with our international team. You will be based in our Geneva office.
Please confirm your acceptance by signing and returning the attached agreement by November 15, 2026.
Sincerely,
Ms. Olivia Bennett
7. Letter of Introduction for Internship
Ms. Isabella Rossi
789 Rome Street
Rome, 00187
Italy
November 5, 2026
Mr. Alexander Kim
Managing Director
Seoul Innovation Hub
321 Seoul Boulevard
Seoul, South Korea 100-120
Dear Mr. Kim,
I am writing to introduce myself as the selected candidate for the international internship program at Seoul Innovation Hub. My name is Isabella Rossi, and I am a final-year engineering student at Politecnico di Milano.
I am particularly excited to contribute to your cutting-edge projects and learn from your team’s expertise in innovation and technology.
Thank you for this opportunity. I look forward to meeting you upon my arrival in Seoul.
Sincerely,
Isabella Rossi
8. Internship Completion Letter
Mr. Liam O’Connor
654 Dublin Road
Dublin, D02 HT44
Ireland
December 20, 2026
Ms. Sophia Patel
Program Coordinator
Cape Town Internships
987 Cape Town Street
Cape Town, 8000
South Africa
Dear Ms. Patel,
I am writing to formally notify you of the successful completion of my internship at Cape Town Internships. My time here has been an incredible learning experience.
I am grateful for the opportunity to work on community development projects and for the support provided by your team throughout my internship.
Thank you once again for this enriching experience. I wish the program continued success in the future.
Sincerely,
Liam O’Connor
9. Letter Requesting an Internship
Ms. Mia Sanchez
321 Madrid Street
Madrid, 28001
Spain
January 8, 2026
Mr. Julian Black
CEO
Berlin Startups Inc.
654 Berlin Avenue
Berlin, 10179
Germany
Dear Mr. Black,
I am writing to express my interest in undertaking an internship at Berlin Startups Inc. As a passionate entrepreneurship student at IE University, I am eager to gain hands-on experience in a dynamic startup environment.
Your company’s innovative approach to business solutions aligns perfectly with my career aspirations. I would be honored to contribute to your team.
Thank you for considering my request. I look forward to the possibility of discussing this opportunity further.
Sincerely,
Mia Sanchez
10. Letter of Withdrawal from Internship
Mr. Ethan Hall
456 Sydney Street
Sydney, NSW 2000
Australia
February 22, 2026
Ms. Charlotte White
Internship Manager
Melbourne Tech Labs
789 Melbourne Avenue
Melbourne, VIC 3000
Australia
Dear Ms. White,
It is with regret that I must inform you of my decision to withdraw from the upcoming internship program at Melbourne Tech Labs. Due to unforeseen personal circumstances, I am no longer able to participate.
I sincerely apologize for any inconvenience this may cause and appreciate the opportunity that was offered to me.
Thank you for your understanding, and I wish the program continued success.
Sincerely,
Ethan Hall
11. Letter of Recommendation for International Intern
Dr. Noah Evans
Dean of Students
University of California
123 Los Angeles Street
Los Angeles, CA 90001
United States
March 25, 2026
Ms. Ava Moore
Internship Coordinator
Paris Fashion House
456 Paris Avenue
Paris, France 75001
Dear Ms. Moore,
I am delighted to recommend Ms. Emma Wilson for your international internship program. Emma is a standout student at the University of California, demonstrating exceptional talent and dedication.
Her passion for fashion design and her ability to work in multicultural environments make her an excellent candidate for your program.
Please feel free to contact me at (555) 123-4567 if you require any additional information.
Sincerely,
Dr. Noah Evans
12. Letter Confirming Internship Details
Ms. Sophie Turner
321 Beijing Road
Beijing, 100000
China
April 12, 2026
Mr. Jackson Brown
Program Director
Shanghai Business Academy
654 Shanghai Street
Shanghai, 200000
China
Dear Mr. Brown,
I am writing to confirm the details of my upcoming internship at Shanghai Business Academy. As discussed, I will be joining the program on May 1, 2026, and will be working on market research projects.
I have arranged my accommodation and will ensure all necessary documents are submitted prior to my start date.
Thank you for your support and guidance throughout this process.
Sincerely,
Sophie Turner
13. Letter of Appreciation for Internship Experience
Mr. Oliver Davis
654 Mumbai Street
Mumbai, 400001
India
May 30, 2026
Ms. Priya Sharma
Director of Internships
Delhi Tech Solutions
987 Delhi Avenue
New Delhi, 110001
India
Dear Ms. Sharma,
I am writing to express my heartfelt appreciation for the opportunity to intern at Delhi Tech Solutions. My time here has been an invaluable learning experience.
The exposure I gained in software development and the mentorship provided by your team have significantly enhanced my technical skills and professional confidence.
Thank you once again for this enriching experience. I am grateful for the opportunity to have been part of your team.
Sincerely,
Oliver Davis
14. Letter of Intent for International Internship
Ms. Isabella Garcia
987 Buenos Aires Street
Buenos Aires, C1000
Argentina
June 10, 2026
Mr. Mateo Lopez
CEO
Rio Innovation Labs
321 Rio Avenue
Rio de Janeiro, RJ 20000
Brazil
Dear Mr. Lopez,
I am writing to express my intent to participate in the international internship program at Rio Innovation Labs. As a computer science student at the University of Buenos Aires, I am eager to contribute to your innovative projects.
I am confident that my technical skills and passion for innovation will enable me to make a meaningful contribution to your team.
Thank you for considering my application. I look forward to the possibility of working with you.
Sincerely,
Isabella Garcia
15. Letter of Reference for Internship Applicant
Dr. Charlotte Hall
Professor of Engineering
University of Melbourne
123 Melbourne Street
Melbourne, VIC 3000
Australia
July 15, 2026
Ms. Emily Carter
Internship Committee
Sydney Engineering Corp.
456 Sydney Avenue
Sydney, NSW 2000
Australia
Dear Ms. Carter,
It is with great pleasure that I write this letter of reference for Mr. Liam O’Connor, who has applied for your international internship program. I have had the pleasure of teaching Liam during his time at the University of Melbourne.
Liam’s exceptional problem-solving skills and his dedication to engineering make him an outstanding candidate for your program.
Please feel free to contact me at (61) 123-4567 if you require any further information.
Sincerely,
Dr. Charlotte Hall
16. Letter of Thanks to Internship Mentor
Ms. Mia Kim
654 Seoul Street
Seoul, 100-120
South Korea
August 25, 2026
Mr. John Park
Mentor
Tokyo Tech Solutions
987 Tokyo Avenue
Tokyo, Japan 100-0001
Dear Mr. Park,
I wanted to take a moment to express my sincere gratitude for the guidance and support you provided during my internship at Tokyo Tech Solutions. Your mentorship was instrumental in my professional growth.
Your insights and encouragement helped me navigate challenges and gain confidence in my abilities. I am deeply grateful for the time you invested in my development.
Thank you once again for your invaluable mentorship. I hope to stay in touch and seek your advice in the future.
Sincerely,
Mia Kim
Conclusion
Crafting a well-written internship letter is essential for making a positive impression and securing international internship opportunities. The 16 examples provided in this guide cover a wide range of scenarios, from application letters to letters of gratitude, ensuring you are prepared for every step of your international internship journey.
By using these templates as a foundation, you can tailor your correspondence to suit your specific needs and ensure your letters are both professional and impactful. Best of luck with your international internship endeavors in 2026 and beyond!