Kalev, besides being a common Estonian masculine given name, may refer to:
- Kalev (mythology), a character from Estonian mythology
- Kalev (given name), an Estonian masculine given name
- Kalev (confectioner), an Estonian sweets company
- BC Kalev/Cramo, a basketball club based in Tallinn, Estonia
- Tallinna Kalev, a basketball club based in Tallinn, Estonia
- JK Tallinna Kalev, a football club based in Tallinn, Estonia
- JK Sillamäe Kalev, a football club based in Sillamäe, Estonia
- Kalev class submarine, class of Estonian British-built submarines and leading ship of this class
- Estonian Sports Association Kalev
- Kaliv (Hasidic dynasty), the Chassidic dynasty and Rebbes of Kaliv/Kalev/Kalov
- Caleb/Kaleb, an individual mentioned in the Hebrew Bible
- Kalev (band), a British rock band
- Sagi Kalev, a bodybuilder/model