Thomas Leeb is an Austrian fingerstyle guitarist. 

He produced his first CD Reveller (now out of print) when he was seventeen. After high school he toured Ireland for four months as street musician.In 1997 he recorded his second CD Hope (out of print) and finished third in the 1998 Open Strings Festival in Osnabrück, Germany.

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In 1999 Leeb published his third CD, Riddle, on the web portal MP3.com and studied at the California Institute of the Arts, focusing on world music and traditional music from Ghana. His teachers were percussionists Kobla and Alfred Ladzekpo, and guitarist Miroslav Tadić. Leeb graduated in 2003 with a Bachelor of Fine Arts. He produced his fourth album, Spark, in 2004 and went completely indie, selling the CDs from his website. In 2006 he recorded the CD Upside Down and in 2007 Desert Pirate.

Leeb tours incessantly, mainly in the US, in Europe (Austria, England, Germany, Ireland and Croatia) and in Asia (Taiwan, Korea and Japan); he has managed to build a worldwide fan community. He irregularly teaches as freelancer at two music schools in Los Angeles. Every summer he organizes a workshop at his Austrian hometown Turracher Höhe which is highly frequented, especially by British guitarists. Leeb taught master classes at the London Music School and the Guitar Institute of Technology in Hollywood. He was featured in several international guitar magazines, such as Guitar Player and Acoustic Guitar. Leeb is an influence especially for young guitarists, for example Newton Faulkner.

Thomas Leeb is married and lives in Val Verde, California.