Yamagata, a village located in Higashichikuma District, Nagano, Japan.

Yamagata Aritomo (1838 – 1922), Japanese military leader and politician

Yamagata City, the capital city of Yamagata Prefecture

Rachael Yamagata (1977 - )

Yamagata, Gifu, a city in Gifu Prefecture

Yamagata, Iwate, a village in Iwate Prefecture

Yamagata District, Hiroshima, a district in Hiroshima Prefecture

Yamagata could also refer to the fictional character in the anime Akira, Yamagata.