Alfred D. Herger (born November 4, 1942) is a famous former Puerto Rican television show host and a psychologist. He is considered by many to be the Ed Sullivan of Puerto Rico. He was born in Arecibo.

Herger was an essential part of the Nueva Ola music revolution of the 1960s in Puerto Rico. He helped the careers of many young singers of the time, such as Ednita Nazario, Yolandita Monge, Carmita Jimenez and others. He became very famous across Puerto Rico with his nightly television shows, which lasted until the late 1970s. He also studied psychology during that period. It was in the early 1970s that he befriended future Menudo creator Edgardo Diaz, who was working in Spain as manager of La Pandilla. Diaz contacted Herger about having La Pandilla go to Puerto Rico to make some recordings and be shown at Herger's show, and Herger accepted. Herger became such a large propulsor of that group in Puerto Rico that he garnered the nickname The biggest Pandillero.

Herger retired from television to dedicate himself fully to his career as a psychologist during the early 1980s. His son, Alfredo and his daughter Grace Marie went on to be successful teen show hosts in Puerto Rico, more notably with WAPA-TV's show Party Time.

Herger still exercises his profession as a psychologist at a private office in San Juan. He has written more than ten books on psychology.