Matsu

Matsu may refer to:

• Matsu Islands, islands of the Republic of China
• Matsu (goddess), a sea goddess in Chinese folk religion
• Matsu, a book by Osamu Dazai
• Matanuska-Susitna Valley, an area in south-central Alaska
• Matsu, a Japanese World War II destroyer
• Matsu class destroyer
• Japanese submarine I-29, code-named Matsu

For the realities of Chinese origin see Mazu