Oldsmar is a city in Pinellas County, Florida, United States. As of the 2010 census, the city had a population of 13,591. The Oldsmar name dates to April 12, 1916 when automobile pioneer Ransom E. Olds purchased 37,541 acres of land by the northern part of Tampa Bay to establish “R. E. Olds-on-the-Bay”
