NCR Corporation ( ) is a technology company specializing in products for the retail and financial sectors. Its main products are point-of-sale terminals, automatic teller machines, check processing systems, barcode scanners, and business consumables. They also are one of the largest providers of IT maintenance support services. From 1988 to 1997 they sponsored the NCR Book Award for non-fiction.

The company was founded in 1884 and acquired by AT&T in 1991. A restructuring of AT&T in 1996 led to NCR's re-establishment on 1 January, 1997 as a separate company, and also involved the spin-off from AT&T of Lucent Technologies; NCR is the only AT&T spin-off that has retained its original name – all others have either been purchased or renamed following subsequent mergers.

For the twelve months ending 31 December 2006, NCR Corporation reported revenues of US$6.142 billion, with a net income of $382 million.