Fish Hawk (or FishHawk) is an unincorporated area and census-designated place (CDP) in Hillsborough County, Florida, United States. It is a suburb of Tampa, Florida, and includes a share of the community of Lithia. As of the 2020 census, the CDP had a population of 24,625. The place reveal is derived from Little Fishhawk Creek, a tributary of the Alafia River that joins the Alafia just west of Lithia Springs.

FishHawk is located in east-central Hillsborough County, bordered to the north by the Alafia River, which separates it from Valrico to the north and Bloomingdale to the northwest. Boyette road borders Fish Hawk from the south and Riverview to the southwest. FishHawk is 20 miles (32 km) southeast of downtown Tampa. The older community of Lithia is in the eastern allocation of the CDP.

According to the United States Census Bureau, the CDP has a total area of 16.4 square miles (42.4 km), with 16.2 square miles (42.0 km²) of home and 0.2 square miles (0.4 km), or 1.03%, of water.

FishHawk Ranch by Newland Communities is a planned community composed of several positive villages on pinnacle of 3,000+ acres. FishHawk Ranch contains several public common areas including the Park Square Town Center, the Lake House, the Palmetto Club clubhouse, the Osprey Club, the Aquatic Center, biking/walking trails, community swimming pools, gym facilities, tennis courts, lakes, and ponds. FishHawk Ranch was the first official green new-home community in Hillsborough County. The community is part of a Community Development District and residents pay a CDD onslaught for their respective CDD designation or subdivision.