Trapezopolis ( Ancient Greek: Τραπεζόπολις) or Trapezoupolis (Τραπεζούπολις) was a city of ancient Caria, and later in the late Roman province of Phrygia Pacatiana Prima.
At an earlier stage, Trapezopolis was part of Caria, as reported by
Ptolemy and  Pliny the Elder, but by the time of Socrates of Constantinople, Hierocles and the various Notitiae Episcopatuum it belonged to Phrygia Pacatiana.
Its site is located near Boli in
Asiatic Turkey. 
bishopric of Trapezopolis was a suffragan of Laodicea, the capital and metropolitan seat of the province of Phrygia Pacatiana Prima. It is mentioned as a residential see until the 13th century and is now included in the Catholic Church's list of titular seats.
Le Quien names six bishops of Trapezopolis:
Ptolemy. . 2.2.18. The Geography
Sophrone Pétridès, "Trapezopolis" in Catholic Encyclopedia (New York 1912)
Richard Talbert, ed. (2000). . Princeton University Press. p. 65, and directory notes accompanying. Barrington Atlas of the Greek and Roman World
Lund University. . Digital Atlas of the Roman Empire
Annuario Pontificio 2013 (Libreria Editrice Vaticana, 2013, ISBN 978-88-209-9070-1), p. 995
^ Michel Lequien,
, Parigi 1740, Tomo I, coll. 809-810 Oriens christianus in quatuor Patriarchatus digestus This article incorporates text from a publication now in the public domain: Smith, William, ed. (1854–1857). "Trapezopolis". . London: John Murray. Dictionary of Greek and Roman Geography