SeaTac is a common nickname for Seattle–Tacoma International Airport.
It may also refer to:
- SeaTac, Washington, USA; a city in the Seattle-Tacoma metropolitan area
- SeaTac/Airport station, a light rail station in SeaTac, WA, USA
- Seattle metropolitan area, which includes Tacoma
- Federal Detention Center, SeaTac (FDC SeaTac)
- The Commons at Federal Way, formerly SeaTac Mall