Lesvi is a Roman Catholic titular bishopric in the former Ecclesiastical province of Mauretania Sitifensis, suffragan of Sitifis, or Sétif, in modern Algeria.[1] It is not, as is sometimes stated, the Island of Lesbos, which never was a titular bishopric, but possesses two titular archbishoprics: Mytilene and Methymna.
The "Itinerarium Antonini" describes Lesvi as situated twenty-five miles from Tupusuctu or Tiklat and eighteen miles from Horrea Aninici (now Ain-Roua, south of Béjaïa). The town was therefore located on the Sava (Oued-Bou-Sellam). However, there are no archaeological remains.
Two of its bishops are recorded: Romanus, a Donatist, present at the convention of Carthage, 411; Vadius, a Catholic exiled by the Vandal King Huneric in 484.
The diocese was nominally restored as a Catholic titular bishopric.
It had had the following incumbents, all of the fitting episcopal rank :
