Glengarry Glen Ross, a 1984 Pulitzer Prize and Tony-winning play by David Mamet

Glengarry Glen Ross (film), a 1992 film based on the play

Clan MacDonnell of Glengarry, a Scottish clan

The Stormont, Dundas and Glengarry Highlanders, a reserve infantry regiment of the Canadian Forces

Glengarry—Prescott—Russell, a federal and provincial electoral district in Ontario, Canada

Glengarry (Edmonton), a residential neighbourhood in Edmonton, Canada

A Glengarry is a boat-shaped cap without a peak made of thick-milled woollen material. Glengarry may also refer to:

Glengarry (electoral district), a former federal electoral district represented in the Canadian House of Commons

Alasdair Ranaldson MacDonell of Glengarry (1771-1828), 15th chief of Clan MacDonell of Glengarry

Stormont—Dundas—South Glengarry, a federal and provincial electoral district in Ontario, Canada

Stormont, Dundas and Glengarry United Counties, Ontario, a census division of the Canadian province of Ontario

Glengarry Shinty Club, a shinty team from Glengarry, Inverness-shire, Scotland

South Glengarry, Ontario, a township in eastern Ontario, Canada

North Glengarry, Ontario, a township in eastern Ontario, Canada

Glengarry Bhoys, a Celtic fusion band from Canada

Glengarry County, Ontario, a historic county in the Canadian province of Ontario

Glengarry and Stormont, a former federal electoral district represented in the Canadian House of Commons