Here are some summer research opportunities for physics graduate and undergraduate students, including international programs: Chemers Neustein Summer Undergraduate Research Fellowship Program (SURF) (USA): Offers research experience to undergraduates in physics, enhancing their skills in biophysics and quantum physics. The Data Science Institute Summer Lab program (USA): Focuses on integrating data science with physics research, providing hands-on experience in computational methods. IMSc Summer Research Programme (India): Aimed at both undergraduate and graduate students, this program delves into theoretical and experimental physics research. HZB International Summer Program (Germany): An international program for students to engage in cutting-edge physics research, particularly in material sciences. HZDR Summer Student Program (Germany): Provides students with opportunities to work on projects related to nuclear and particle physics. ISTernship Summer Program (Austria): Offers research internships focusing on physics, technology, and innovation, fostering a global research perspective. Taiwan International Internship Program: An international experience for physics students to explore research in various fields, enhancing cultural exchange. NIG-Internship (Japan): Specializes in biophysics, offering unique research opportunities in a Japanese setting. DESY Summer Student Programme (Germany): Focuses on particle and photon science, providing a deep dive into experimental physics. AstroTech (USA): Partially funded, this program offers astronomical research experience, with a focus on instrumentation and technology. The Undergraduate Research Opportunities Program (UROP) (Germany): Encourages undergraduate research in physics, promoting early involvement in scientific inquiry. Caltech LIGO Summer Research (SURF) (USA): Engages students in gravitational wave research, one of the frontiers of modern physics.