The Brown Quail (Coturnix ypsilophora), also known as Swamp Quail, is an Australasian true quail of the family Phasianidae.

The Brown Quail is distributed in agricultural areas, wet grasslands, shrublands and freshwater wetlands across much of New Guinea and the Lesser Sunda Islands as well as in northern, eastern, south-eastern and south-western Australia and Tasmania, though absent from arid regions. This species has been introduced to Fiji and New Zealand.

Widespread and common throughout its large range, the Brown Quail is evaluated as Least Concern on the IUCN Red List of Threatened Species.