The 1886–87 Scottish Cup was the 14th season of Scotland's most prestigious football knockout competition.

Hibernian won the competition for the first time after they beat Dumbarton 2–1 in the final.

Sources:[6] Carfin Shamrock received a bye to the fourth round.

Sources:[6] On the motion of Mr McCulloch of Dundee Harp, the Scottish FA decided to ensure that the fourth round would be the last round requiring byes and that there would be only five ties, all involving one of the five clubs that had received byes thus far.

[16][17] Consequently, Clyde, Dumbarton, Dunblane, Dundee Harp, Hibernian, Hurlford, Kilmarnock, Port Glasgow Athletic, Queen's Park, Vale of Leven and 3rd Lanark RV all received a bye to the fifth round.