6D

• Boeing Model 6D
• Canon EOS 6D
• Curtiss P-6 Hawk
• D6 (disambiguation)
• Grumman A-6 Intruder
• Hughes OH-6 Cayuse
• Jamaica 6d abolition of slavery postage stamp
• North American P-51 Mustang
• North American T-6 Texan
• Six-dimensional space
• Sixpence (British coin)
• Sixpence (disambiguation)
• Snakedance
• Xian H-6