The term blue frog may refer to:

  • Blue poison dart frog (Dentrobates tinctorius "azureus"), a frog in the family Dendrobatidae found in southern Suriname and adjacent far northern Brazil
  • Australian green tree frog (Litoria caerulea), a frog in the family Hylidae native to Australia and New Guinea, actually green but originally called "blue frog" due to damaged specimens
  • Various characters:

As Blue Frog, it may also refer to: