Olivetti is an Italian manufacturer of computers, tablets, smartphones, printers and other such business products as calculators and fax machines.

Headquartered in Ivrea, in the Metropolitan City of Turin, the company has been part of the Telecom Italia Group since 2003.
One of the first commercial programmable desktop calculators, the Programma 101, was produced by Olivetti in 1964 and was a commercial success.