Critan is the name of several Irish saints:
1. Son of Illadhon, commemorated May 11, at Achadh-finnich, on the river Dodder, County Dublin, where they are probably interred. Colgan affirms that. he was the Credan, Cridan, or Critan who was one of the many pupils whom St. Petroc had during his residence in Ireland (Todd and Reeves, Mart. Doneg. page 125; Colgan, Acta Sanctorum, page 585, c. 4; 586 n.).
2. Bishop of Aendruim, or Nendrum (now called Mahee Island, in Strangford Lough), commemorated. May 17, whose death is given at A.D. 638 by the Irish Annalists (O'Donovan, Four Masters, 1:256 n., 257;. Reeves, ut sup. page 148).
3. Of Moin-Miolan, commemorated February 7 with Lonan and Miolan or Mellan, all sons of Daire; buried at Cluain-feart-Molua (now Confertmulloe or Kyle, in the barony of Upper Ossory, Queen's County) (Colgan, uf sup. page 58 n.; O'Donovan, ut sup. 1:207 n.).
4. Certronnach, of Bennchar (Bangor), commemorated September 16. In Mart. Doneg. (Todd and Reeves, page 251) he is called cellarer of St. Comgall of Bangor, and is said to have got the name Certronnach because he used to divide fairly. His mother was Eithne, daughter of Saran, son of Colgan, and sister of Ronan. He died A.D. 669 (O'Donovan, 1:280 n., 281).