Theophil Antonicek (22 November 1937 – 19 April 2014) was an Austrian musicologist.
Antonicek was a corresponding member of the philosophical-historical class of the Austrian Academy of Sciences since 1984 and a full member since 1995, as well as editor of the Denkmäler der Tonkunst in Österreich since 1998.
From 1998 to 2010 he also supervised the publication series "Studien zur Musikwissenschaft".
As co-founder of the Austrian Society for Musicology, he directed it from 1973 to 1983.
Antonicek died in Vienna at the age of 76 and was buried at the Romantic Cemetery in Maria Enzersdorf.