XCS
| Acronym | Definition |
|---|---|
| XCS | Cross Country Skiing |
| XCS | Xchanging Claims Services (UK) |
| XCS | Xerox Computer Services (Los Angeles, CA) |
| XCS | Xenos Christian Schools (Columbus, OH) |
| XCS | Xerographic Copier Service |
| XCS | XMM (X-Ray Multi-Mirror) Cluster Survey (galaxy survey) |
| XCS | Experimental Contamination Studies |