ISMA
Isma is a genus of butterflies.
ISMA may refer to:
- The Ikatan Muslimin Malaysia (ISMA), a Malaysian NGO
 - The International Securities Market Association
 - The International Supermodified Association, a sanctioning body in modified racing
 - The Internet Streaming Media Alliance
 - Esmaël Gonçalves, also known as Isma, Bissau-Guinean professional footballer