Lumpen can refer to:

• Lumpen (magazine), an American art and politics magazine
• Lumpenproletariat, a term in Marxist sociology
• Lumpenbourgeoisie
• Swedish slang for military service, adopted by armed forces as a near-formal word

• Lapsiphedi
• Lapsiporn
• Lapsiporno
• Lapsiporno.info
• Lapsley
• Lap Steel Guitar
• Lap steel ukulele
• Lapstone Oval
• Lapstone railway station, New South Wales
• Lap straps
• Lapszanka
• Lapsze Nizne
• Lapsze Nizne Commune
• Lapsze Wyzne
• Lapszow
• LAPT
• Laptadenia pyrotechnica
• Lapta (disambiguation)
• Laptaria Enache
• Laptaria lui Enache
• Lapta Tuerk Birligi
• Lapta Tuerk Birligi S.K.
• Lapta Tuerk Birligi Spor Kuluebue
• Lapta Turk Birligi
• Lapta Turk Birligi S.K.