1974 Dutch Open – Singles

The 1974 Dutch Open – Singles was an event of the 1974 Dutch Open tennis tournament and was played on outdoor clay courts at 't Melkhuisje in Hilversum in the Netherlands from 21 July until 28 July 1974. The draw comprised 32 players. Tom Okker was the defending Dutch Open singles champion but did not compete in this edition. Guillermo Vilas won the title by defeating Barry Phillips-Moore in the final, 6–4, 6–2, 1–6, 6–3.