John Patrick Horgan (26 May 1929 – 6 October 2021) was a British-American actor of Irish descent. He was known for playing Dr. John Morrison in the NBC soap opera television series The Doctors. He completed an unabridged reading of Finnegans Wake in 1985 for the Library of Congress.

Horgan died on 6 October 2021, at the age of 92.

Horgan was married to the actress Irish McCalla from 1958 to 1969. They divorced in 1969 due to a disagreement over whether to vote for Eldridge Cleaver of the Peace and Freedom Party.