Summer internships provide an invaluable opportunity for students and recent graduates to gain hands-on experience in their chosen fields while exploring new cultural and professional environments. The year 2025 brings a plethora of fully funded summer internship programs across the world, offering students financial support, mentorship, and the chance to work with leading organizations. This guide presents a list of some of the most prestigious fully funded summer internships available for international students in 2025.

1) Spain CNIO Summer Training Program 2025 (Fully Funded)

The Spanish National Cancer Research Centre (CNIO) is offering an eight-week summer training program for six university students from any nationality. This program is ideal for students interested in cancer research and biomedical sciences.

• Host Country: Spain
• Location: Spanish National Cancer Research Centre, Madrid
• Duration: 8 Weeks
• Dates: 23rd June – 14th August 2025
• Benefits: Fully Funded
• Deadline: 31st March 2025
• Official Link: Spain CNIO Summer Training Program

2) POSTECH Summer Program in South Korea (Fully Funded)

Pohang University of Science and Technology (POSTECH) offers a six-week summer program designed for students interested in research across various scientific disciplines.

• Host Country: South Korea
• Location: POSTECH, Pohang
• Program Dates: 7th July – 15th August 2025
• Duration: 6 Weeks
• Benefits: Fully Funded
• Deadline: 1st March 2025
• Official Link: POSTECH Summer Program 2025

3) MBZUAI Research Internship 2025 in UAE (Fully Funded)

The Mohamed bin Zayed University of Artificial Intelligence (MBZUAI) in Abu Dhabi offers a four-week research internship for students passionate about AI and machine learning.

• Host Country: UAE
• Location: MBZUAI Campus, Abu Dhabi
• Duration: 4 Weeks
• Benefits: Fully Funded
• Deadline: 28th February 2025
• Official Link: MBZUAI Research Internship Program

4) NSTC Taiwan International Internship Program 2025

The National Science and Technology Council (NSTC) of Taiwan funds a three-month internship program aimed at students pursuing degrees in science, technology, and engineering.

• Host Country: Taiwan
• Duration: Maximum 3 Months
• Funded by: NSTC Taiwan
• Who Can Apply: Bachelors, Masters, and PhD students
• Number of Internships: 600
• Deadline: 15th September 2025
• Official Link: NSTC Taiwan International Internship Program

5) GRIPS Summer Internship 2025 in China (Fully Funded)

The Global Research Immersion Program for Young Scientists (GRIPS) in China provides 200 students with a fully funded summer internship opportunity in diverse research areas.

• Host Country: China
• Internship Name: GRIPS
• Number of Interns: 200
• Dates: From 23rd June 2025
• Benefits: Fully Funded
• Deadline: 9th March 2025
• Official Link: GRIPS Summer Research Internship

6) GIST Global Internship 2025 in South Korea (Fully Funded)

The GIST summer internship in South Korea is an eight-week program for undergraduate and graduate students looking to gain experience in science and technology research.

• Host Country: South Korea
• University: Gwangju Institute of Science and Technology (GIST)
• Duration: 8 Weeks
• Internship Month: July – August 2025
• Benefits: Fully Funded
• Deadline: 28th February 2025
• Official Link: GIST Global Internship 2025 

7) Toyota Boshoku Summer Internship in Japan 2025 (Funded)

This two-month internship program at Toyota Boshoku provides students with hands-on experience in Japan’s automotive industry.

• Host Country: Japan
• Location: Aichi, Japan
• Internship Duration: 2 Months
• Program Dates: 23rd June – 31st August 2025
• Financial Benefits: Funded
• Deadline: 28th February 2025
• Official Link:  Toyota Boshoku Summer Internship 

8) NUS Singapore IRIS Internship 2025 (Fully Funded)

The National University of Singapore (NUS) offers the IRIS Internship, a fully funded two-month research program for international students.

• Host Country: Singapore
• Location: National University of Singapore
• Duration: 2 Months
• Dates: June – July 2025
• Benefits: Fully Funded
• Deadline: 5th March 2025
• Link:NUS Singapore IRIS Internship

9) WESTLAKE University China Summer Internship 2025 (Funded)

Westlake University’s summer internship program in China offers students a four-week research experience in various academic fields.

• Host Country: China
• Location: Westlake University
• Duration: 4 Weeks
• Program Dates: July – August 2025
• Financial Benefits: Partially Funded
• Official Link: WESTLAKE China Summer Internship

10) NIMS Internship 2025 in Japan (100 Positions)

The National Institute for Materials Science (NIMS) in Japan is offering 100 internship positions in cutting-edge research fields.

• Location: NIMS Institute, Japan
• Duration: 90 Days
• Dates: 1st April 2025 – 31st March 2026
• Number of Interns: 100
• Deadline: 31st March 2025
• Official Link:  NIMS Internship in Japan

11) University of Hong Kong CDS Internship 2025 (Fully Funded)

The Centre for Data Science (CDS) at the University of Hong Kong provides a fully funded, seven-week internship program for 50 international students.

• Host Country: Hong Kong
• Location: University of Hong Kong
• Dates: 13th July – 31st August 2025
• Benefits: Fully Funded
• Number of Applicants: 50
• Deadline: 30th May 2025
• Official Link: University of Hong Kong HKU CDS Internship

12) AIIB Global Internship Program 2025 in China (Fully Funded)

The Asian Infrastructure Investment Bank (AIIB) offers a fully funded two-month summer internship in Beijing for students interested in finance and international development.

• Host Country: China
• Location: Beijing
• Duration: 2 Months
• Program Dates: Starts 1st July 2025
• Benefits: Fully Funded
• Deadline: 28th February 2025
• Official Link: AIIB Global Internship Program