Cathal mac Conchobar mac Taidg (died 1010) was king of Connacht.

Family tree

    Cathal mac Conchobar mac Taidg, d. 1010.
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    |                   |                            |          |             |                       |
    |                   |                            |          |             |                       |
    Dub Chablaigh       Tadg in Eich Gil, d. 1030.   Brian,     Conchobor,    In Cléirech, fl. 1044.  Tadhg Direach
   =Brian Boru         =?                           d. 1029      fl. 1029.    |                       |
    |                   |                                                     |_________              |
    |                   |                                                     |        |              An Gilla Lónach
    Domnall?            Áed in Gai Bernaig,                                   |        |
    |                     King of Connacht,                                    Tadg,    Conchobar,
    |                        died 1067.                                       d.1056.    d. 1069.
    Diarmait,
    d. 1051.