CLB

CLB may refer to:

Organizations

 * Canadian Language Benchmarks, the Canadian system of measuring English as a Second Language (ESL) proficiency levels.
 * China Labour Bulletin, a non-governmental organization that promotes and defends workers’ rights in the People's Republic of China
 * Church Lads' Brigade, from 1891 to 1978, a predecessor of the Church Lads' and Church Girls' Brigade, a Church of England youth organisation
 * Columbia Lighthouse for the Blind, an organization founded to help the blind or visually impaired population of the greater Washington, D.C. region

Other uses

 * Certified Lover Boy, a 2021 album by Canadian rapper Drake
 * Combat logistics battalion, a unit in the United States Marine Corps
 * Configurable logic block, a component of a field-programmable gate array