Diocese no longer extant, or united with another diocese.

1189

Conn ua Mellaig [Concors]

1202

Murchad ua Flaithbertaig

1242

Tomas O Mellaig

1251

Conchobar [Concors]

1283

John de Ufford

1308

Gilbert O Tigernaig

1323

Jacobus O Cethernaig

1326

Robert Petit

1328

Albertus

1329

Tomas O Mellaig

1359

Dionysius

1393

Johannes

1394

Henry Trillow

1402

John Bryt

1408

John Wynn

1421

John Boner [Camere]

1425

Seean Mac Braddaigh

1428

Seamus O Lonnghargain

1431

Donatus O Madagain

1446

Thomas Salscot

1450

Redmund Bermingham

1458

Thomas Barrett

1496

Francis Brunand

1540

John Moore

United to Tuam c. 1555