Poplar may refer to:

Plants

*''

Populus ''Populus'' is a genus of 25–30 species of deciduous flowering plants in the family Salicaceae, native to most of the Northern Hemisphere. English names variously applied to different species include poplar (), aspen, and cottonwood. The we ...

'', the plant genus which includes most poplars, as well as aspen and cottonwood **

Black poplar ''Populus nigra'', the black poplar, is a species of cottonwood poplar, the type species of section ''Aigeiros'' of the genus ''Populus'', native to Europe, southwest and central Asia, and northwest Africa.Flora Europaea''Populus nigra''/ref> ...

(''Populus nigra'') ** Carolina or Canadian poplar, '' Populus × canadensis'' ** Grey poplar (''Populus × canescens'') ** White poplar *** ''

Populus alba ''Populus alba'', commonly called silver poplar,Webb, C. J.; Sykes, W. R.; Garnock-Jones, P. J. 1988: Flora of New Zealand. Vol. IV. Naturalised Pteridophytes, Gymnosperms, Dicotyledons. 4. Christchurch, New Zealand, Botany Division, D.S.I.R. si ...

'', native to Eurasia *** '' Populus grandidentata'', bigtooth aspen *** ''

Populus tremuloides ''Populus tremuloides'' is a deciduous tree native to cooler areas of North America, one of several species referred to by the common name aspen. It is commonly called quaking aspen, trembling aspen, American aspen, mountain or golden aspen, t ...

'', American aspen * ''

Liriodendron ''Liriodendron'' () is a genus of two species of characteristically large trees, deciduous over most of their populations, in the magnolia family ( Magnoliaceae). These trees are widely known by the common name tulip tree or tuliptree for their ...

'', the genus of tulip poplars ** Yellow poplar or tulip poplar (''Liriodendron tulipifera'') ** '' Liriodendron chinense'', Chinese tulip poplar

Places

;Canada * Poplar, Ontario, a community in the township of Burpee and Mills *

Poplar Creek, British Columbia Poplar Creek is a ghost town in the West Kootenay region of southeastern British Columbia. The former mining community is at the mouth of Popular Creek on the southwest side of the Lardeau River. The locality, on BC Highway 31, is about northwest ...

, a ghost town ;United Kingdom *