NCR can refer to several topics:

• National Capital Region. The term for the conurbations that surround the national capitals of several countries.
• NCR Corporation, a technology company specializing in solutions for businesses.
• Numeric character reference, a way of referring to any Unicode character in a web page or XML document using an ASCII-only escape sequence.
• '''No carbon required paper
• _nC_r as an abbreviation of the mathematics formula "from n choose r"

NCR