Adal may refer to:
- A short form for Germanic names in aþala- (Old High German adal-), "nobility, pedigree"; see Othalan
- Adál Maldonado (1948-2020), Puerto Rican artist
- Adal Ramones (born 1969), Mexican television show host
- Adal Hernandez (born 1973), American tattoo artist
- Adal Island, Malaysia
- Scandinavian Ådal (Old Norse Árdalr), "river valley":
- Ådal, valley and former municipality in Buskerud county, Norway
- Illerup Ådal, archeological site in Denmark
- Arabic عدل ʿadl, "justice":
- Adal (historical region), former geographic region in Northeast Africa
- Adal Sultanate (عدل), former sultanate in Northeast Africa
- The Arabic name of Awdal, a region in northwestern Somaliland
- Adal (sheep), breed of sheep from Ethiopia
- FC Adal Asmara, football team from Eritrea
- Adal, Iran (عادل), a village in the Lorestan Province
- Adal was a political party in Kazakhstan.