Connla or Conlaoch is a character in the Ulster Cycle of Irish mythology, the son of the Ulster champion Cú Chulainn and the Scottish warrior woman Aífe. He was raised alone by his mother in Scotland. He appears in the story Aided Óenfhir Aífe (The Tragic Death of Aífe's Only Son), a pre-tale to the great epic Táin Bó Cúailnge.
Connla was conceived after Cú Chulainn, in the service of his teacher Scáthach, defeats Aífe in battle. When he returns to Ireland, Cú Chulainn requests that his son be sent to him when he comes of age, but puts three geasa on him. To fulfill these conditions, Connla cannot turn back once he starts his journey, he must not refuse a challenge, and must never tell anyone his name. During his journey, Conlaoch comes upon Dún Dealgán, Cú Chulainn's home, and is met by the warrior Conall Cernach. When asked his name and lineage, he refuses to answer and is challenged to a duel. Connla disarms Conall, humiliating him. Cú Chulainn then approaches Connla, asking the same question. Connla responds by saying, "Yet if I were not under a command, there is no man in the world to whom I would sooner tell it than to yourself, for I love your face." Despite the compliment, Cú Chulainn challenges Connla. In the ensuing duel, Cú Chulainn is so pressed by his son's skill at arms that the famous "hero-light" transfigures his features. From this Connla knew his father, and cast aside his weapons. Cú Chulainn's wife Emer, who has discovered Connla's identity, also tries to warn Cú Chulainn that he is fighting his own son, but to no avail. Cú Chulainn casts Gáe Bulg, his invincible spear made of sea monster's bones, fatally wounding Connla. In dying, Connla finally speaks his name, and praises the valor of Ireland's fighting men. Cú Chulainn, realizing he has killed his own son, is stricken by grief.
The story of Connla's death by his father's hand is related in the WB Yeats poem "Cuchulain's Fight with the Sea," first published in 1892. The poetic retelling differs in several respects from the original myth, including portraying Connla as the son of Emer and not Aífe.
- Squire, p. 177.