NXC may refer to:
nxc, NX technology library Namco × Capcom, a turn-based strategy console game Not eXactly C, a high level language, similar to C, built on top of the Next Byte Codes compiler Nuveen California Select Tax-Free Income Portfolio National Express Coaches National Express Coventry netexec, alternatively nxc, a penetration testing tool used to automate the security testing of large networks NXC, an abbreviation for Nightcore