The 2005–06 season was Port Vale's 94th season of football in the English Football League, and second successive season in League One. They finished in mid-table, and exited the League Cup at the First Round and the League Trophy at the Second Round. In the FA Cup, Vale made it to the Fourth Round, where they were knocked out 3–1 by top-flight Aston Villa. Foyle's efforts to build a promotion-winning team were boosted when Vale gained striker Leon Constantine, but his efforts were hindered with the sales of both Sam Collins and Billy Paynter.