1936–37 Welsh Cup

The 1936–37 FAW Welsh Cup is the 56th season of the annual knockout tournament for competitive football teams in Wales.

Key
League name pointed after clubs name.
 * B&DL - Birmingham & District League
 * CCL - Cheshire County League
 * FL D2 - Football League Second Division
 * FL D3N - Football League Third Division North
 * FL D3S - Football League Third Division South
 * MWL - Mid-Wales Football League
 * SFL - Southern Football League
 * WLN - Welsh League North
 * WLS D1 - Welsh League South Division One
 * WLS D2E - Welsh League South Division Two East
 * WLS D2W - Welsh League South Division Two West
 * W&DL - Wrexham & District Amateur League

Second round
18 winners from the first round plus Vron United and Ebbw Vale.

Third round
Ten winners from the second round plus 20 new teams.

Fourth round
14 winners from the third round. Barry get a bye to the Fifth round.

Fifth round
Five winners from the Fourth round plus Barry. Porth United and Llay Welfare get a bye to the Sixth round.

Sixth round
Three winners from the Fifth round, Porth United, Llay Welfare plus eleven new clubs.

Semifinal
Semifinal were held on a neutral venue: Rhyl and Newport County played at Shrewsbury, while Crewe Alexandra and Barry Town played at Cardiff.

Final
Both final and replay were held in Chester.