Paspalum floridanum is a species of grass known by the common name Florida paspalum. It is native to the eastern United States.

This rhizomatous perennial grass has stems which can exceed 2 m (6 ft 7 in) in height. The leaf blades are up to 52 cm (20 in) long and may be hairless to hairy, with a dense coating of hairs behind the ligules. The inflorescence is a panicle with up to 6 branches. The paired spikelets are generally oval in shape and measure a few millimeters long.

This grass grows in disturbed, wet habitat types such as ditches. It grows in woods and marshy areas.

The seeds provide food for birds.