Airdrie (/ˈɛərdri/ AIR-dree) is a city in Alberta, Canada, located north of Calgary within the Calgary–Edmonton Corridor at the intersection of Queen Elizabeth II Highway (Highway 2) and Highway 567. The city is part of the Calgary census metropolitan area and is surrounded by Rocky View County. Airdrie has a population of around 90,000 people, making it the 5th largest city in Alberta, after Calgary, Edmonton, Lethbridge, and Red Deer.

Airdrie was first established in 1889 during the construction of the Calgary and Edmonton Railway, named for Airdrie, Scotland. Airdrie originated as a whistle stop for trains next to Nose Creek, allowing for easy replenishment of water for steam locomotives. Only railway buildings existed until 1901, when the first farmhouse and barn were built followed by a post office and store in that same year. The village of Airdrie was incorporated in 1909.

The annexation of 12,640 acres of land by Airdrie from Rocky View County in 2012 is designed to accommodate anticipated growth until 2062. Airdrie's southern and Calgary's northern city boundaries are within a few kilometres of each other.

Airdrie is divided into four civic addressing quadrants. As of 2023, the City of Airdrie recognized the following neighbourhoods, not including rural and annexation land.

In the 2025 Municipal Census conducted by the city, Airdrie had a population of 90,044. The average age of city residents was 34 years old.

The population grew 14% from the last municipal census in 2019. Due to COVID-19 there were no municipal censuses done between 2020 and 2022.

In the 2021 Census of Population conducted by Statistics Canada, the City of Airdrie had a population of 74,100 living in 26,050 of its 26,714 total private dwellings, a change of 20.3% from its 2016 population of 61,581. With a land area of 84.39 km² (32.58 sq mi), it had a population density of 878.1/km² (2,274/sq mi) in 2021.

In 2021, 74.7% of residents were white/European, 20.4% were visible minorities and 4.9% were Indigenous.