Tobias Boshell (born 20 July 1950) is an English songwriter and musician, best known as the founder of the folk rock band Trees.

Bias sang and played bass, guitar and piano on their two CBS albums, The Garden of Jane Delawney (1970) and On the Shore (1971), and wrote much of their material.

After the original group broke up in the early 1970s, Boshell worked with Kiki Dee, writing her hit songs "I've Got the Music in Me" and "First Thing in the Morning," among others.

In 1987 he moved on to The Moody Blues, becoming their lead keyboard player after the departure of Patrick Moraz in 1991.

He has also recorded with Sheena Easton, Kevin Ayers, Beverley Craven, Chris Farlowe, and Duane Eddy.