Dennis E. Leh (born January 4, 1946) is a Republican former member of the Pennsylvania House of Representatives.

[5] He served in the United States Army from 1965 to 1967, attaining the rank of sergeant in the Military Police Corps.

[6] He completed a four-year Tool and die maker apprenticeship, and worked for Doehler-Jarvis, Farley Industries.

He then became the owner of Leh Tool Service, and operated his business for twenty years.

[5][6] In 1994, he proposed the three-strikes laws against persistent violent offenders.