Populus × tomentosa, commonly known as Chinese white poplar or Peking poplar, is a species of tree in the family Salicaceae. It is found across northern and eastern China, and has been introduced to the US state of Louisiana.

Populus × tomentosa is a large tree. The species has strong resistance to many diseases and insects. It also plays key roles in shelterbelts and urban afforestation in northern China.

Populus × tomentosa has long been suspected to be a hybrid, but its exact parents remain unknown.

Populus × tomentosa has relatively more fibrous roots than other trees.

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