Tobias Clausnitzer (5 February 1619 − 7 May 1684) was a German Lutheran pastor and hymn writer.
Born in Thum, Clausnitzer studied theology at the University of Leipzig from 1642.
When the Thirty Years' War ended, he held a service celebrating the Peace of Westphalia in Weiden in der Oberpfalz in 1649.
He settled, became pastor, and later also Kirchenrat [de] and inspector of Parkstein and Weiden.
"Liebster Jesu, wir sind hier" became popular, also in translations.