The Constant Couple is a 1699 play by the Irish writer George Farquhar.

A series of comic misunderstandings are triggered when three rivals vie for the hand of the wealthy heiress Lady Lurewell.

The original cast included Robert Wilks as Sir Harry Wildair, George Powell as Standard, John Mills as Vizard, Benjamin Johnson as Smugler, William Pinkethman as Clincher Senior, William Bullock as Clincher Junior, Henry Norris as Dicky, Joseph Haines as Tom Errand, Susanna Verbruggen as Lurewell, Jane Rogers as Angelica, Mary Powell as Lady Darling and Henrietta Moore as Parly.

[1] For several decades the part of Sir Harry was strongly identified with the actor Robert Wilks, and became his signature role.

Actresses who have played the role of Lady Lurewell included Anne Oldfield and Hannah Pritchard.