RMX may refer to

• RMX (operating system), a real-time operating system designed for use with Intel 8080 and 8086 processors
• Fast RMX, a Nintendo Switch racing video game
• Reverse MX, a computer protocol related to email transfer
• Risk Management Exchange, a financial market in Germany
• Remix, an alternative version of a recorded song, made from an original version

• Streatham (1805 EIC ship)
• Streatham by-election, 1939
• Streatham Cemetery
• Streatham & Clapham High School
• Streatham (Greater London)
• Streatham Hill Theatre
• Streatham Ice Arena
• Streatham Jewish Cemetery
• Streatham (London County Council constituency)
• Streatham Redhawks
• Streatham Redskins
• Streatham Vale Cemetery
• Streatham War Memorial
• Streatley railway station
• Streatley station
• Streatley Warren
• Streator Public Library
• Streator Station
• Strebe 1995 projection
• Strebinger
• Strebinger, Richard
• Streblote dorsalis
• Streblote panda
• Streblus elongatus
• Streblus taxoides