Pedro Reginaldo Lira, (September 7, 1915 – December 11, 2012) was an Argentine Bishop of the Roman Catholic Church.
Lira was born in Salta, Argentina in 1915 and was ordained a bishop on September 21, 1938.
Lira was then appointed bishop of the Diocese of San Francisco in Argentina on June 12, 1961.
He resigned from this post on June 22, 1965, and was then appointed Titular bishop of Castellum in Mauretania.
The Catholic University of Salta and the Horco Huasi Institute published a book in memory of him in 2016.