Cobbitty is a semi-rural town of the Macarthur Region near the town of Camden, southwest of Sydney, in the state of New South Wales, Australia. The area is mostly farmland with a population of just over 4,000.

The area is mostly farmland and agricultural. At the southern end of the suburb, bordering the Nepean River is Camden Airport, a site for gliding and skydiving. The main road, Cobbitty Road, is home to "Cobbitty Primary School", a general store, a small cafe, and "Teen Ranch". Teen Ranch is a Christian organisation that runs school and holiday programs for teens.

Cobbitty is home to a New South Wales Rural Fire Service brigade. The brigade has two trucks and is often called upon for incidents both within and outside of the district. The brigade has currently 40 members, and is active throughout the year, not just during bushfire season.

The area has views over the township of Camden.

Macarthur Anglican School is in Cobbitty.

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The area now known as Cobbitty was originally home to the Muringong, southernmost of the Darug people. Settlement began in the early 19th century following the establishment of John Macarthur's Camden Park Estate nearby.

Cobbitty Post Office opened on 1 May 1869 and closed in 1993.

Cobbitty has a number of heritage-listed sites, including:

• 421 The Northern Road: Denbigh, Cobbitty

At the 2021 census, Cobbitty had a population of 4,206 people. A large proportion (79.3%) of these people were born in Australia, with other common countries of birth being England (3.4%), New Zealand (1.1%), Philippines (0.8%), China (0.6%) and India (0.6%). 83.6% of people only spoke English at home. The most common responses for religion in Cobbitty were Catholic (35.2%), No Religion (25.3%) and Anglican (18.0%).

Cobbitty is part of the north ward of Camden Council represented by Lara Symkowiak and Usha Dommaraju (both Liberals) and Cindy Cagney of the Labor Party. The suburb is in the federal electorate of Hume, represented by Angus Taylor (Liberal), and the state electorate of Camden, held by Sally Quinnell of the Labor Party.

• Eliza Marsden Hassall - philanthropist

• Christine Robinson (2008). "Cobbitty". Dictionary of Sydney. Retrieved 26 September 2015. [CC-By-SA]