The 2017–18 FA Youth Cup was the 66th edition of the FA Youth Cup. The defending champions were Chelsea and they retained the trophy for the fifth year in a row after a 7–1 aggregate victory over Arsenal in the final.
260 teams took part in the First Qualifying Round, with 136 teams having progressed from the previous round. The lowest level teams competing were from level 11 of the English football league system. The draws were regionalized on a North/South basis.
† Despite winning the match, Shrewsbury Town were subsequently disqualified after it was found that they had fielded an ineligible player. Evesham United were therefore permitted to advance to the next round instead.