List of number-one singles of 1978 (Ireland)

This is a list of singles which have reached number one on the Irish Singles Chart in 1978.

• 17 Number Ones
• Most weeks at No. 1 (artist): John Travolta (14), Olivia Newton-John (14)
• Most weeks at No. 1 (song): "You're The One That I Want" - John Travolta and Olivia Newton-John (9)
• Most No.1s: John Travolta (3), Olivia Newton-John (3)
• 4 songs from the film Grease reached No. 1: "You're The One That I Want", "Summer Nights", "Sandy" and "Hopelessly Devoted to You"

See also

• 1978 in music
• Irish Singles Chart
• List of artists who reached number one in Ireland

References