| Honorific-Prefix: | Most Reverend |
| Bishop of Michoacán | |
| Church: | Catholic Church |
| Term: | 1598–1601 |
| Predecessor: | Alfonso Guerra |
| Successor: | Andrés de Ubilla |
| Consecration: | 1586 |
| Birth Place: | Toro, Spain |
| Death Date: | 1601 |
| Death Place: | Morelia, Mexico |
| Previous Post: | Bishop of Nicaragua (1585–1591) Bishop of Popayán (1591–1598) |
| Nationality: | Spanish |
Domingo de Ulloa, O.P. (died 1601) was a Roman Catholic prelate who served as Bishop of Michoacán (1598–1601),[1] Bishop of Popayán (1591–1598),[2] and Bishop of Nicaragua (1585–1591).[3]
Domingo de Ulloa was born in Toro, Spain[4] and ordained a priest in the Order of Preachers.[5] [6] On 4 February 1585, he was appointed during the papacy of Pope Gregory XIII as Bishop of Nicaragua and ordained bishop in 1586 in Spain. On 9 December 1591, he was appointed during the papacy of Pope Gregory XIII as Bishop of Popayán On 3 April 1598, he was appointed during the papacy of Pope Clement VIII as Bishop of Michoacán where he served until his death in 1601.
While bishop, he was the principal consecrator of Antonio Calderón de León, Bishop of Puerto Rico (1597), and Juan de Labrada, Bishop of Cartagena (1597).