Glenn Tilbrook (born Glenn Martin Tilbrook, on 31 August 1957, in Woolwich, South East London) is the lead singer, and guitarist of the English group Squeeze, a power pop band formed in the mid-1970s. Glenn generally wrote the music for Squeeze, while his writing partner, Chris Difford, wrote the lyrics.

Over the duration of Squeeze's first hiatus, from approximately 1983 to 1985, Tilbrook wrote, recorded, and toured with Difford as an act called Difford & Tilbrook.

Since Squeeze's second breakup in 1999 (they reformed in 2007 for a series of shows, possibly not permanently), Glenn has pursued a solo career, often touring around the UK and U.S. in an unreliable RV, playing small venues to audiences of faithful and highly supportive fans. He currently has two solo albums, The Incomplete Glenn Tilbrook and Transatlantic Ping-Pong. Tilbrook co-wrote some of the songs for his solo recordings with artists such as Ron Sexsmith, Chris Braide and Aimee Mann. In 2006, the documentary "Glenn Tilbrook: One for the Road" was released. The film follows Glenn on his November 2001 tour across America.