Thomas Werner or Tom Werner may refer to:
Thomas Werner, German youth who committed suicide in an all male gymnasium, inspiring The Heart of Thomas, a 1974 Japanese manga series written and illustrated by Moto Hagio Thomas Werner Laurie (1866–1944), London publisher of books Tom Werner, or Thomas Charles Werner (born 1950), American television producer and businessman Tom Preston-Werner (born 1979), American billionaire software developer and entrepreneur and CEO of GitHub
See also Werner Thomas, Swiss accordionist