Places beginning with AR in South Dakota, United States
- Arcade, Township of
- Ardmore
- Arena, Township of
- Arena, Township of
- Argentine, Township of
- Argonne
- Argo, Township of
- Argyle
- Arlington
- Arlington Beach
- Arlington, City of
- Arlington (historical), Township of
- Armadale (historical), Township of
- Armour
- Armour, City of
- Arpan
- Arrowhead Estates
- Artas
- Artas (historical), Township of
- Artas, Town of
- Artesian
- Artesian, Town of
- Artichoke, Township of