Mwinyi may refer to:
People Abdullah Mwinyi (born 1974), Tanzanian judge Ali Hassan Mwinyi (1925–2024), Tanzanian head of State Hussein Mwinyi (born 1966), Tanzanian politician in Zanzibar Omar Mwinyi (born 1958), Kenyan politician Rajab Mwinyi (born 1984), Burundian footballer Siti Mwinyi (born 1932), Tanzanian first lady
First name Mwinyi Kazimoto (born 1988), Tanzanian footballer