PWM may refer to:

Science and technology

Position weight matrix A position weight matrix (PWM), also known as a position-specific weight matrix (PSWM) or position-specific scoring matrix (PSSM), is a commonly used representation of motifs (patterns) in biological sequences. PWMs are often derived from a set ...

, a representation in motifs in biological sequences * Pulse-width modulation, a technique for controlling the average power delivered by an electrical signal *

PWM (window manager) In Unix computing, Ion is a tiling and tabbing window manager for the X Window System. It is designed such that it is possible to manage windows using only a keyboard, without needing a mouse. It is the successor of PWM and is written by the sa ...

, a Unix-based X window manager

Other uses

* ''

Panzerwurfmine The ''Panzerwurfmine'' (abbreviated to PWM) was a shaped charge hand-thrown anti-tank grenade used by ''Luftwaffe'' ground troops in World War II. Appearance The ''Panzerwurfmines appearance owed much to the ''Panzerfaust'' (specifically its warh ...

'', a type of German anti-tank hand grenade *

Portland International Jetport Portland International Jetport is a public airport two miles (3 km) west of downtown Portland, Maine, United States. It is owned and operated by the City of Portland. A portion of the Jetport's property, including the main runway, is lo ...

, an airport in the U.S. * ''

Professional Wealth Management ''Professional Wealth Management'' (''PWM'') is a magazine about European wealth management. It is published by the Financial Times group. ''PWM'' focuses on open and guided architecture and distribution of third party products by institutions a ...

'', a financial magazine * Permanent Way Machine, the British Rail Class 97/6 locomotives * Polskie Wydawnictwo Muzyczne, the Polish Music Publishing House {{disambiguation