VX or vx may refer to:
VxWorks is a real-time operating system (RTOS) developed as proprietary software by Wind River of Alameda, California, US.
VX, originally Rock-It-Ball, is a ball sport from the UK. It evolved in North Yorkshire (Great Britain) and was launched in February 2006 at the Youth Sport Trust's Sports Colleges Conference.
Air Development Squadron Six (VX-6 or AIRDEVRON SIX, commonly referred to by its nickname, "puckered penguins") was a United States Navy Air Development Squadron based at McMurdo Station, Antarctica.
Antarctic Development Squadron Six (VXE-6 or ANTARCTIC DEVRON SIX, commonly referred to by its nickname, The Puckered Penguins) was a United States Navy Air Test and Evaluation Squadron based Naval Air Station Point Mugu, California with forward operating bases at Christchurch, New Zealand and McMurdo Station, Antarctica.
VXR is the branding for the high-performance trim specification, used since 2004 for models in many of Vauxhall's car range in the United Kingdom.
Five by Five, stylized as VxV is the second studio album from Christian metal band Wolves at the Gate.
VXX, officially the Presidential Helicopter Replacement Program, is a procurement program to replace aging Marine One helicopters that transport the President of the United States.
VXA is a tape backup format originally created by Ecrix and now owned by Tandberg Data. After the merger between Ecrix and Exabyte, VXA was produced by Exabyte Corporation.