The 1886–87 Football Association Challenge Cup was the 16th FA Cup, England's oldest football tournament.

One hundred and twenty-eight teams entered, two fewer than the previous season, in addition to four of the one hundred and twenty-eight never playing a match.

The Football Association also rejected a number of entries for being made too late.

[1] [*] The Cannon side (from Tottenham) had entered the competition without being registered with the Football Association, so was ineligible to play[2] [**] Newton Heath turned up for the match with several ineligible players, and so scratched before the game; the sides played a friendly, which ended 2-2.

[3] [***] Due to a number of their first-team being ineligible to play, Everton scratched to Rangers and played a friendly match instead, with Rangers winning 1-0[4]