Michael VII Doukas or Dukas/Ducas (Greek: Μιχαήλ Ζ΄ Δούκας), nicknamed Parapinakēs (Παραπινάκης, lit. "minus a quarter", with reference to the devaluation of the Byzantine currency under his rule), was Byzantine emperor from 1071 to 1078.
Michael VII was born c. 1050 in Constantinople, the eldest son of Constantine X Doukas and Eudokia Makrembolitissa. He was associated with his father on the throne late in 1059, together with or shortly before his newly born brother Konstantios Doukas. When Constantine X died in 1067, Michael VII was 17 years old and should have been able to rule by himself. He exhibited little interest in politics, however, and his mother Eudokia and uncle John Doukas governed the empire as effective regents.
Michael VII resigned the throne with hardly a struggle on March 31, 1078 and retired into the Monastery of Stoudios. He later became metropolitan of Ephesus and died in Constantinople in c. 1090.