Lost in the Fifties Tonight is the seventeenth studio album by American country music artist Ronnie Milsap, released in 1986. The album produced four singles, all of which claimed the top spot on the Billboard country singles chart, including the title track, which was previously featured on Milsap's Second Greatest Hits Volume. The others included "Happy, Happy Birthday Baby", "In Love" and "How Do I Turn You On."
The album reached No. 1 on Country charts and peaked at #121 on the Billboard 200. It was ultimately certified as gold. The album went out of print in 2005, but was re-released as a double album with 1987's Heart & Soul on May 8, 2012.