- Bürmann-Lagrange series
- Bürmann theorem
- Bīrunī
- C
- Cabeo, N.
- cabinet projection
- cable
- cable knot
- cabtaxi number
- Caccioppoli, R.
- cactoid
- cactus
- cactus fractal
- cactus graph
- CAD (= computer-aided design)
- CAD (= cylindrical algebraic decomposition)
- cadlag function
- cadlag 【法文】
- Caesar method
- cage
- cage graph
- Cahn-Hilliard equation
- Caianiello differential equation
- Caianiello, E.R.
- Cairns, S.S.