Popelin may refer to:
People Claudius Popelin (1825–1892), French writer, painter, and poet included in Le Parnasse contemporain Marie Popelin (1846–1913), Belgian feminist, educator and advocate
Other Popelín, a village and municipality (obec) in Jindřichův Hradec District, South Bohemian Region, Czech Republic 11090 Popelin (1994 CT12), a main-belt asteroid discovered on 1994 by E. W. Elst
See also Poplin