The 1981–82 National League A (German: Nationalliga A, French: Ligue Nationale A, Italian: Lega Nazionale A) was the 51st season of the top level association football competition in Switzerland since the establishment of the national league in 1931. Grasshopper, led by Timo Konietzka, won their 18th national title three points ahead of Servette and previous season's champions and cross-town rivals Zürich.