The qualifying campaign for the 1902–03 FA Cup, the thirty-second staging of the world's oldest association football competition, consisted of six rounds of matches, which began on 20 September 1902 with the preliminary round. The Cup was eventually won by Bury, who beat Derby County in the final.
Matches were scheduled to be played at the stadium of the team named first on the date specified for each round, which was always a Saturday. If scores were level after 90 minutes had been played, a replay would take place at the stadium of the second-named team later the same week. If the replayed match was drawn further replays would be held at neutral venues until a winner was determined.