Poplar Island may refer to:

• Poplar Island (British Columbia)
• Poplar Island (Prince Edward Island)

• Poplar Island, River Thames
• Poplar Eyot

• Poplar Island (Chesapeake Bay)
• Poplar Island (West Virginia)

• Húnán Shīfàn Dàxué
• Hú Qǐlì
• Húsafell Stone
• Húsares de la Muerte
• Húsasmiðjan
• Húsavík Airport
• Húsavík Whale Museum
• Hú Shì
• Hú Zhèngyuè
• Hú Zhìmíng
• Hübbe
• Hübener
• Hübi
• Hübichenstein
• Hübja
• Hübler
• Hübl Peak
• Hübschhorn
• Hübschmann-Meillet
• Hückel Rule
• Hückel’s rule
• Hücker Moor
• Hücker moor
• Hücü
• Hüdekin