Gilla in Choimded Ó Cerbailláin
Gilla in Choimded Ó Cerbailláin (died 1279), also known in Latin as Germanus, was a medieval Irish bishop.
Ó Cerbailláin was elected Bishop of Cinél nEógain in 1230. In 1254 he transferred the See from Ráith Lúraig (Maghera) to Derry.