[1] One of the locations the name is first recorded is in Clogher in County Tyrone.
Teallach Maoilpatraig, listed in Topographical Poems by O’Dugan, under Cinel Fearadhaigh.
"The most noble of Cinel Fearadhaigh ... Tellach Maoilpatraic".
O Maol Phadraig translates into follower of (St) Patrick.
[3] It became O'Mulpatrick and Mulpatrick and the first recorded instances of the surname appear in records from the late 16th century in counties Cavan, Fermanagh, Monaghan, Westmeath and Longford.