The 1999–2000 season was the 91st year of football played by Dundee United, and covers the period from 1 July 1999 to 30 June 2000. United finished in eighth place, an improvement on last year's ninth-place finish, despite accumulating fewer points in this campaign. United were knocked out of both domestic cup competitions by Aberdeen – in the League Cup semi-finals and the Scottish Cup quarter-finals, both by a score of 1–0.