SWK may refer to:
- Samakkhi Witthayakhom School, a high school in the northern Thailand
- Scott Wilson Group's London Stock Exchange ticker symbol
- London Borough of Southwark's ISO geocode
- Stacy & Witbeck, Inc. and Kiewit Western, Co., A Joint Venture, a light rail construction company
- Stanley Black & Decker's New York Stock Exchange stock ticker symbol
- Star Wars Kid, an Internet phenomenon
- SWK MOBIL, a German transport operator
- SWK Technology, a premier Sage Reseller of Sage MAS 90, Sage MAS 200, Sage MAS 500, Sage X3 ERP, and SageCRM software
- Sealed With a Kiss
- Southwick railway station, a railway station in Sussex, England
