| CLU | California Lutheran University 
| Others |
| CLU | Central Labor Union
| Others |
| CLU | Central Locking Unit
| Others |
| CLU | Certified Cluster Installer
| Others |
| CLU | Change of Land Use
| Others |
| CLU | Chartered Life Underwriter
| Others |
| CLU | Chartered Life Underwriter (US)
| Others |
| CLU | Chris Lovers Unite
| Others |
| CLU | Christian Leadership University (online college)
| Others |
| CLU | Christian Life University
| Others |
| CLU | Circuit Line Up
| Others |
| CLU | Civil Liberties Union
| Others |
| CLU | Claims List Updated
| Others |
| CLU | Claremont Lincoln University
| Others |
| CLU | Clinical Language Understanding
| Others |
| CLU | Cluster Module
| Others |
| CLU | Codified Likeness Utility
| Others |
| CLU | Codified Likeness Utility (Tron)
| Others |
| CLU | Color Look-Up
| Others |
| CLU | Columbus, Indiana USA
| Others |
| CLU | Combinatorial Logic Unit
| Others |
| CLU | Combustibil Lichid Usor
| Others |
| CLU | Command Launch Unit
| Others |
| CLU | Command Line Utility
| Others |
| CLU | Common Land Unit
| Others |
| CLU | Common Logic Unit
| Others |
| CLU | Communion and Liberation University
| Others |
| CLU | Community Labor United
| Others |
| CLU | Community Land Unit
| Others |
| CLU | Compatible Land Use
| Others |
| CLU | Computing Language Utility
| Others |
| CLU | Conditional Location Update
| Others |
| CLU | Consejo de Latinos Unidos
| Others |
| CLU | Constant Linear Unit
| Others |
| CLU | Container Launch Unit
| Others |
| CLU | Containerized Latrine Unit
| Others |
| CLU | Cool Lefty Union
| Others |
| CLU | Counters Lambdas And Uninterpreted
| Others |