Namesakes
Characters in Celtic Mythology:
10 characters
Eochaid Étgudach (a.k.a. Eochaidh) (m) 
Eochaid Fáebar Glas (a.k.a. Eochaidh) (m)
Eochaid Airem (a.k.a. Eochaidh) (m)
Eochaid Feidlech (a.k.a. Eochaidh) (m)
Eochu Mumu (a.k.a. Eochaidh) (m)
Eochu Apthach (a.k.a. Eochaidh) (m)
Eochu Uairches (a.k.a. Eochaidh) (m)
Eochu Fíadmuine (a.k.a. Eochaidh) (m)
Eochu mac Ailella (a.k.a. Eochaidh) (m)
Eochu Ailtlethan (a.k.a. Eochaidh) (m)
Irish Kings:
13 kings
King Eochaid Étgudach (a.k.a. Eochaidh) 1159-1155 BC
King Eochaid Fáebar Glas (a.k.a. Eochaidh) 1115-1095 BC
King Eochu Mumu (a.k.a. Eochaidh) 1071-1050 BC
King Eochu Apthach (a.k.a. Eochaidh) 726-725 BC
King Eochu Uairches (a.k.a. Eochaidh) 633-621 BC
King Eochu Fíadmuine (a.k.a. Eochaidh) 621-616 BC
King Eochu mac Ailella (a.k.a. Eochaidh) 577-570 BC
King Eochu Ailtlethan (a.k.a. Eochaidh) 285-274 BC
King Eochaid Feidlech (a.k.a. Eochaidh) 94-82 BC
King Eochaid Airem (a.k.a. Eochaidh) 82-70 BC
King Eochaid Gonnat (a.k.a. Eochaidh) 244-245
King Eochaid Mugmedón (a.k.a. Eochaidh) 344-351
King Eochaid mac Domnaill (a.k.a. Eochaidh) 569-572