A patio (//, from Spanish: patio [ˈpatjo]; "courtyard", "forecourt", "yard", "little garden") is an outdoor space generally used for dining or recreation that adjoins a structure and is typically paved. In Australia the term is expanded to include roofed structures such as a veranda, which provides protection from sun and rain. Pronunciation can vary in Australia as well: patty-oh is perhaps more common generally although payshee-oh may be used by older Australians. 
Patios are most commonly paved with concrete or stone slabs (also known as paving flags). They can also be created using bricks, block paving, tiles, cobbles or gravel. Other kinds of patio materials these days include alumawood, aluminum, acrylic and glass. Other options include concrete, stamped concrete, and aggregate concrete.
Patio is also a general term used for outdoor seating at restaurants, especially in Canadian English. While common in Europe even before 1900, eating outdoors at restaurants in North America was exotic until the 1940s. The Hotel St. Moritz in New York in the 1950s advertised itself as having the first true continental cafe with outdoor seating. The Toronto Star welcomed that city's first patio in the 1960s. In the United States, having a warmer and sunnier climate than Northern Europe, outdoor dining grew rapidly in the 1960s and today is a popular dining experience in the warmer parts of the mainland.
- "Patio in the Oxford Dictionary". Archived from the original on April 16, 2014.
- Court, Jess (2021-05-17). "How to make the best of your outdoor space". Aqua Warehouse. Retrieved 2022-02-28.
- Department of Planning. "State Planning Policy 3.1 - Residential Design Codes". Retrieved 9 October 2017.
- "Australian Word Map". Macquarie Dictionary. Retrieved 18 June 2023.
- Chris Bateman. "How Toronto learned to love the patio." Spacing. APRIL 29, 2015
- British Precast Concrete Federation (1973). Paving Flags (to B.S. 368: 1971). British Precast Concrete Federation.
- Mildenhall, Henry Seymour (1983). Laying Precast Concrete Paving Flags. Cement and Concrete Association. ISBN 978-0-7210-1288-9.
- Fwa, T.F. (28 September 2005). The Handbook of Highway Engineering. CRC Press. ISBN 978-1-4200-3950-4.