Alumnae Theatre, Historical theater in downtown Toronto, Canada

The Alumnae Theatre operates in a heritage building that contains multiple performance spaces, featuring a main stage and a smaller studio area for different types of productions. The facilities allow the venue to host various scales of theatrical work throughout the year.

The theater was founded in 1918 by female graduates of the University of Toronto and ranks among Canada's oldest independent theater companies. Its continuous operation over more than a century has made it a long-standing presence in the Canadian arts scene.

The company's mission has always been to stage the great plays of the western canon, with occasional modern works such as the Toronto premiere of a play by Carol Shields. Performers were all female at first; male guest performers were invited from the 1920s, and the leadership remains entirely female today.

The main performance space seats 140 on the ground level; a smaller studio venue is on the third floor, where the New Ideas Festival runs each year, typically at the end of March over two or three weeks. The building is an old fire hall at Adelaide and Berkeley streets.

The New Ideas Festival, entering its 35th year, is a juried event for new writing, works-in-progress and experimental theatre, with a different program each week. It typically runs at the end of March for two or three weeks in the third-floor studio, and has long given emerging Canadian playwrights, directors, actors and stage managers a first stage.