Pinellas Park is a city located in central Pinellas County, United States. The population was 53,093 at the 2020 census. The city is the fourth largest city in Pinellas County. The City of Pinellas Park was incorporated in 1914. It is part of the Tampa–St. Petersburg–Clearwater Metropolitan Statistical Area, most commonly referred to as the Tampa Bay Area.

The city was founded by Philadelphia publisher F. A. Davis, who purchased 12,800 acres (52 km2) of Hamilton Disston's land around 1911. Davies used promotional brochures to lure northerners, especially Pennsylvanians, to the town, noting the pleasant climate in the winter and the agreeable agricultural conditions. The Florida Association, a corporation, set up model farms and offered a free lot in the city with the purchase of ten acres of nearby farm land. A two-story building called the Colony House was established to house prospective purchasers of the available farm plots. The primary crop that the founders intended to grow on the farms they established was sugar cane. By 1912, lots in the city were being sold separately. The City of Pinellas Park was formally incorporated on October 14, 1914.

Though not on the original Orange Belt Railway, Pinellas Park did have a train depot, razed in 1970, on the line between Clearwater and St. Petersburg. The city lay on the vehicle road from St. Petersburg to Tampa. Growth was moderate until after World War II, when the city's population more than tripled.