Yamashiro is a Japanese word with kanji often meaning mountain castle (山城). There are however other kanji spellings.

• Yamashiro, Kyoto, former town in Japan
• Yamashiro, Tokushima, former town in Japan
• Yamashiro Province, former Japanese province
• Japanese battleship Yamashiro, a battleship of the Imperial Japanese Navy
• Yamashiro Onsen, an onsen in Kaga, Ishikawa province
• Yamashiro Park Taiyogaoka Stadium, an athletic stadium in Uji, Kyoto, Japan
• Yamashiro Historic District, a villa, restaurant, and gardens in Los Angeles, California
• Yamashiro, or yamajiro, category of Japanese castle in which the main structures are located on a mountain

In addition to kanji variation, the word could also be read as Yamagusuku in the Ryukyu Islands.

People

Yamashiro is also a Japanese surname. In the Okinawan language, the kanji is read Yamagusuku. Notable people with the surname include:

• Prince Yamashiro (d.643)
• Danny Yamashiro (1967- )
• Hiroshi Yamashiro (1958- )
• Junya Yamashiro (1985- )
• Rafael Yamashiro (1963- )
• Shingo Yamashiro (1938–2009)
• Shoji Yamashiro, pseudonym for Tsutomu Ōhashi
• Stephen K. Yamashiro (1941–2011)
• Mary Yamashiro Otani (1923–2005)
• Augusto Miyashiro Yamashiro (1949- )

Fictional characters

• Aoba Yamashiro
• Tatsu Yamashiro