"Age of Reason" is a song by Australian pop rock singer John Farnham.

Written by Todd Hunter and Johanna Pigott, it was released as the first single from Farnham's 1988 album of the same name.

The song topped Australia's ARIA Singles Chart for four weeks and became a hit in New Zealand, where it peaked at number four.

[2] "Age of Reason" was composed by Todd Hunter and partner Johanna Pigott, who had previously written the song "Rain" for Dragon and played together in the XL Capris.

"[3] The music video for "Age of Reason" was filmed in 1988 and included six key scenes, with the Victorian Children's Choir in three of the sequences: running through a scrap metal yard, running down a hill behind Farnham, and standing in a warehouse as Farnham walks between them.