The history of the lands where Canoas is located today begins long before its official founding. Initially, this territory was inhabited by the indigenous Tapes people. The first European settlers appeared here in the 18th century, when the conquistador Francisco Pinto Bandeira occupied these lands in 1733 and established a large estate (fazenda) called Gravataí. Land rights were officially secured for him by the Portuguese Crown in 1740. In the following decades, the large estate was divided and sold off, which contributed to the gradual settlement of the region.
The name of the city, which translates from Portuguese as "canoe", has an interesting origin. During the construction of the railway in the 1870s, workers used the wood of a large local tree (timbaúva) to make canoe boats. The place where this happened became known as Capão das Canoas ("Grove of Canoes"), and this name soon became attached to the railway station, and later to the entire settlement.
The growth and development of Canoas were determined by several key factors. Its proximity to Porto Alegre, the state capital, initially made these lands attractive for country residences and farming. A turning point in the city's history was the construction of the railway line connecting Porto Alegre and São Leopoldo. The opening of the railway station in Canoas in 1874 served as a powerful catalyst for urbanization and the influx of new residents. An important role in gaining city status was played by the establishment of the 3rd Military Aviation Regiment here in 1937, the command of which actively advocated for administrative independence. Officially, the municipality of Canoas was established on June 27, 1939.
Initially, the region's economy was entirely agrarian and built around large livestock farms. With the advent of the railway, land began to be actively sold for small estates and summer houses (chácaras), which changed the social landscape. In the early 20th century, the Lasallian Brothers played an important role in cultural life, founding a school in the settlement in 1908 that offered primary and agricultural education. After receiving city status, especially after 1945, Canoas began to grow rapidly, transforming from a so-called "dormitory town", whose residents worked in Porto Alegre, into an independent and economically developed industrial centre.