Robert Weston, often credited as Bob Weston, is an American musician, producer, recording engineer, and record mastering engineer.
In 1987 Weston joined The Volcano Suns, playing bass guitar.
Weston joined Steve Albini and Todd Trainer in Shellac in 1991. Under Albini, Weston honed his studio production skills and has gone on to record and mix material for bands including Sebadoh (at ), June Of 44, Polvo, amongst others. Weston was also Albini's Assistant Engineer on Nirvana's In Utero album.
In 2002, Weston joined the reunited Mission Of Burma, taking the place of Martin Swope as tape manipulator and live engineer for the band.

In early 2007, Weston opened Chicago Mastering Service with Jason Ward on Chicago's west side.

In 2025 Weston sold Chicago Mastering Service to one of the engineers there, Greg Obis, and opened Weston Masters in Parede, Portugal.

An etched series of numbers identifies the date the master lacquer was cut.
e.g. 080929 - Sep 29, 08