Johann Friedrich Wender (baptized 6 December 1655 – 13 June 1729) was a German organ builder who had his workshop in Mühlhausen.
Born in Dörna, Thuringia, Wender collaborated with Johann Sebastian Bach, who obtained his first position as an organist in Arnstadt from 1703, after he had inspected and demonstrated a new organ which Wender had built there. In 1707 Bach moved to Mühlhausen, where Wender worked. Wender died in Dörna.
Notable students of Wender include his son Christian Friedrich Wender, his son-in-law Johann Nikolaus Becker, Johann Christian Dauphin and Johann Jacob John.