Teodulfo Sabugal Domingo (September 5, 1910 - June 3, 2002) was a Filipino prelate of the Catholic Church in the Philippines.

Archbishop Teodulfo S. Domingo was born in San Jose, Baggao, Cagayan on September 5, 1910.

For his priestly formation, he first studied at the San Jacinto Seminary and later in the Immaculate Conception School of Theology (ICST), which was run by the SVD fathers at that time.

That same day, he was succeeded by his Auxiliary Bishop Diosdado A. Talamayan as the Second Archbishop of Tuguegarao.

The Bishop's chosen motto is "Ad Nutum Reginae", meaning "At the Good Pleasure of the Queen."