Říha (feminine Říhová) is a Czech surname. Notable people with the surname include:
Blanka Říhová (born 1942), Czech immunologist Bohumil Říha, Czech writer František Říha, Czech canoeist Jan Říha, Czech footballer Jiří Říha, Czech ice hockey player Lukáš Říha, Czech ice hockey player Martin Josef Říha, Czech Roman Catholic clergyman Miloš Říha (1958–2020), Czech ice hockey player and coach
See also Karl Riha (1935–2026), Czech-born German poet, writer and literary scholar