Prodigy Communications Corporation (Prodigy Services Corp., Prodigy Services Co., Trintex) was an online service from 1984 to 2001 that offered its subscribers access to a broad range of networked services, including news, weather, shopping, bulletin boards, games, polls, expert columns, banking, stocks, travel, and a variety of other features.

Prodigy was described by the New York Times as "family-oriented" and one of "the Big Three information services" in 1994.

Initially, subscribers using personal computers accessed the Prodigy service by means of copper wire telephone "POTS" service or X.25 dialup. For its initial roll-out, Prodigy used 1,200 bit/s modem connections. To provide faster service and to stabilize the diverse modem market, Prodigy offered low-cost 2,400 bit/s internal modems to subscribers at a discount. The host systems used were regionally distributed IBM Series/1 minicomputers managed by central IBM mainframes located in Yorktown Heights, New York.

The company claimed it was the first consumer online service, citing its graphical user interface and basic architecture as differentiation from CompuServe, which started in 1979 and used a command-line interface.

By 1990, it was the second-largest (and 1993 the largest) online service provider with 465,000 subscribers, trailing only CompuServe's 600,000. Its headquarters were in White Plains, New York until 2000, when it moved to Austin, Texas.