ST6

ST6 may refer to:

• ST6 and ST7, 8-bit microcontroller product lines from STMicroelectronics
• ST6, a postcode district in the Stoke-on-Trent postcode area
• ST6, a variant of the Pratt & Whitney Canada PT6 turboprop aircraft engine
• ST6, the Finance and Investment Specialist Technical B examination of the Institute of Actuaries
• ST6, the last of the KX series of telephone boxes in the United Kingdom