Sulak may refer to:
- Sulak River, a river in the Republic of Dagestan, Russia
- Sulak, Republic of Dagestan, a settlement of urban type in the Republic of Dagestan, Russia
- Sulak, name of several rural localities in Russia
- Stryker Sulak (b. 1986), an American football player
- Sulak Sivaraksa (b. 1933), a Thai Buddhist
- Sulak (crater), a crater on Mars
- Novy Sulak, a settlement of urban type in the Republic of Dagestan, Russia
- Šulak, a demon in the Babylonian magico-medical tradition