In Australia, the song debuted at number 40 on the ARIA Singles Chart. In its eighth week, it peaked at number three on May 12, 1996, where it stayed for two weeks. It was last appeared on the chart on July 21, 1996, at number 37. To date, "Ironic" is her best charting song on the country. In New Zealand, where the song was released as a double A-side with "You Oughta Know", it debuted at number 13 on April 21, 1996, peaked at number three on May 19, and made its last appearance on the chart at number 36 on June 30, staying at total of 11 weeks in the top 50. Like in Australia, "Ironic" became Morissette's highest-peaking single in New Zealand, but only at the time; "Thank U" and "Hands Clean" would chart higher in 1998 and 2002, respectively.