Mandarinfish or mandarin fish may refer to:
Saltwater aquarium fish Synchiropus splendidus, also known as the mandarin goby and the mandarin dragonet, native to the Pacific Ocean Picturesque dragonet or Synchiropus picturatus, also known as the spotted mandarin, psychedelic mandarin or target mandarin, native to the Indo-West Pacific
Freshwater perch Siniperca chuatsi, also known as the Chinese perch, native to China and Russia Golden mandarin fish or Siniperca scherzeri, also known as the leopard mandarin fish, native to East Asia
See also Mandarin dogfish (Cirrhigaleus barbifer), a dogfish shark species native to the North Pacific Southern Mandarin dogfish (Cirrhigaleus australis), a related dogfish shark species native to Australia and New Zealand