The Superstore Monctonian Challenge (men's event) or the Superstore Lady Monctonian (women's event) is an annual bonspiel, or curling tournament, held at Curl Moncton in Moncton, New Brunswick.

The Lady Monctonian Invitational Spiel ran from 1968 to 1987 and, was re-created in 2005 after a hiatus due to a lack of sponsors.

[1] It later became a World Curling Tour event until 2019.

The tournament is held in a round robin format.

The event was previously known as the Lady Monctonian Invitational Spiel, the Lady Monctonian Invitational and the Atlantic Superstore Monctonian Challenge.