Erwan Vallerie ː Loguanoc, XIIIvet; Lohanec, Lohenec, Lohannec, Lohane, Lohaneuc, Louanec, Loanec, 1330; Louennec, Louvanec, Louuanec, 1371; Louvannec, Lovanec, 1371; Louanec, 1395; Louannec, 1516; Louanec, 1592, 1630; Lohanech, 1636, 1709;