PWM

PWM may refer to:

• PWM (window manager), an X window manager
• Panzerwurfmine, a type of fin-stabilised shaped charge anti-tank hand grenade used by German Luftwaffe ground troops in World War II
• Position weight matrix or position-specific scoring matrix, a representation in motifs in biological sequences
• Portland International Jetport, an airport in Portland, Maine, U.S.
• Professional Wealth Management, a financial magazine
• Pulse-width modulation, an efficient way of providing intermediate amounts of electrical power
• Permanent Way Machine, the British Rail Class 97/6 locomotives
• Polskie Wydawnictwo Muzyczne, a music publisher, Poland