CA7 or CA-7 can mean:

• Carbonic anhydrase 7, a human gene
• California's 7th congressional district
• California State Route 7
• CA-7 (software), a workflow automation package

• Vector rejection
• Vector resolute
• Vectors in three-dimensional space
• Vectors: Journal of Culture and Technology in a Dynamic Vernacular
• Vector soliton
• Vector space model
• Vector (spatial)
• Vector spherical harmonics
• Vector SRV8
• Vector (STL)
• Vector Sum Excited Linear Prediction
• Vector Supercars
• Vector superfield
• Vector ten
• Vector the Crocodile
• Vector the Crocodile (character)
• Vector Tobacco
• Vector training
• Vector Unit
• Vector vortex coronagraph
• Vector w8
• Vector WX-8
• Vectra (disambiguation)
• Vectren Corp
• Vectren Dayton Air Show