Loreto "Ato" Vianzon Tolentino (December 9, 1947 – November 5, 2023) was a Filipino professional basketball player and later coach.
[1] Tolentino played for the basketball team of University of Manila (UM) where he obtained his marketing degree.
He suited up for Presto (later Great Taste) from 1975 until 1979 when he was forced to retire due to a torn cartilage on his left knee.
[3] Tolentino played for the Philippine national team in the Pesta Sukan Games in Singapore alongside Sonny Reyes and Tembong Melencio.
In between those periods he also coached Rizal Athletic Club and ERDC in the now defunct Philippine Amateur Basketball League.