The 1976–77 Yorkshire Cup was the sixty-ninth occasion on which the Yorkshire Cup competition had been held.

Leeds won the trophy by beating Featherstone Rovers by the score of 16–12.

The match was played at Headingley, Leeds, now in West Yorkshire. The attendance was 7,645 and receipts were £5,198.

This was Leeds' sixth victory (and the second of two consecutive victories) in what would be eight times in the space of thirteen seasons.

It as also Featherstone Rovers's first of two consecutive Yorkshire Cup final appearances, both of which resulted in a defeat.

This season there were no junior/amateur clubs taking part, no new entrants and no "leavers" and so the total of entries remained the same at sixteen.

This in turn resulted in no byes in the first round.

^[1][2]

1 * The attendance is given as 7,644 by RUGBYLEAGUEproject^[1] but the Rothmans Rugby League Yearbook of 1991-92^[4] and 1990-91^[5] gives the attendance as one more at 7,645
2 * Headingley, Leeds, is the home ground of Leeds RLFC with a capacity of 21,000. The record attendance was 40,175 for a league match between Leeds and Bradford Northern on 21 May 1947.

• 1976–77 Northern Rugby Football League season
• Rugby league county cups