List of number-one singles of 2010 (Ireland)

This is a list of the IRMA's Irish Singles Chart Top 50 number-ones of 2010.

Irish Boy Band Boyzone , gained their ninth number one when Gave It All Away debuted at number one
Irish Duo Jedward 's debut single, Under Pressure (Ice Ice Baby) was number one for four non-consecutive weeks.
Pop star Katy Perry gained her second and third number one single in 2010 with California Gurls and Teenage Dream .