The Flora and Fauna Series (Tagalog: Seryeng Flora at Fauna) was a series of Philippine peso coins minted from 1983 to 1994, in denominations from 1 sentimo to ₱2.

In 1983, eight years after the introduction of the Ang Bagong Lipunan Series, a new series named the Flora and Fauna Series was introduced, in which the coins, in addition to featuring various Philippine national heroes as before, also began featuring plant and animal life forms native to the Philippines.

The 5-piso denomination was stopped, but production resumed (in a new, smaller size) in the final four years of the Flora and Fauna Series, which featured reduced sizes for all denominations (except the one- to ten-sentimo coins).

The text on the 10-sentimo coin for the scientific name of the Philippine goby was minted as "Pandaka pygmea" instead of "Pandaka pygmaea", and the 50-sentimo coin showed the misspelled version of the scientific name of the Philippine eagle as "Pithecobhaga jefferyi" instead of "Pithecophaga jefferyi".

Commemorative coins in 1991 in the original larger size were minted months before the introduction of the Improved Flora and Fauna Series on April of the said year.