List of number-one singles of 1985 (Ireland)

This is a list of singles which have reached number one on the Irish Singles Chart in 1985.


 * 26 Number Ones
 * Most weeks at No.1 (song): "I Know Him so Well" - Elaine Paige and Barbara Dickson (5)
 * Most weeks at No.1 (artist): Elaine Paige and Barbara Dickson (5)
 * Most No.1s: Phil Collins (2 shared No.1s)
 * NOTE: There were 4 Various Artist No. 1s this year (Band Aid, The Concerned, USA for Africa and The Crowd)