Walden International is a San Francisco-based venture capital firm founded in 1987 by Lip-Bu Tan and Peter Liu. The firm specializes in cross-border investments, focusing on early and expansion-stage companies across sectors such as semiconductors, clean technology, internet and digital media, and software. With over 30 years of experience, Walden International has played a significant role in the development of China's technology sector, including early investments in companies like Semiconductor Manufacturing International Corp (SMIC).

The firm manages various funds targeting investments in China and Israel, emphasizing technology-related sectors. As of 2024, Walden International has approximately $5 billion in assets under management.