Riho is both an Estonian masculine given name and a Japanese feminine given name. Notable people with the name include:

Estonia

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Japan

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  • Riho (born 1997), Japanese professional wrestler
  • Riho Iida (born 1991), Japanese actress and model
  • Riho Makise (born 1971), Japanese actress
  • Riho Nakajima (born 1978), Japanese former synchronized swimmer
  • Riho Ōtake (born 1993), Japanese volleyball player
  • Riho Sayashi (born 1998), Japanese dancer and actress, 9th generation member of the pop group Morning Musume
  • Riho Sugiyama, Japanese voice actress