Ciba may refer to:
- Novartis, which is formed by a merger by a company named CIBA and J. R. Geigy Ltd. The company still retains numerous subsidiary with the Ciba name.
- Ciba Specialty Chemicals
- Ciba Vision
- Confédération International de Billard Artistique of Artistic billiards
- PowerWord, the Chinese dictionary software whose Chinese name is transcribed as cíbà.
- Ciba, a village in Miercurea-Ciuc city, Harghita County, Romania
- Ciba, a village in Crăciuneşti Commune, Mureş County, Romania
- CIBA, acronym for the California Intercollegiate Baseball Association
- CIBA, acronym for Connecticut International Baccalaureate Academy