1. In aircraft

2. In media and entertainment

Bad Penny may refer to:

In aircraft

• "Bad Penny" (aircraft), a nickname for an Avro Lancaster involved in Operation Manna

In media and entertainment

• "Bad Penny" (song), a song by Rory Gallagher
• Bad Penny (TV series), an English sitcom
• "Bad Penny Blues", a jazz piece by Humphrey Lyttelton

• Acid-base theories
• Acid base theory
• Acid-base theory
• Acid Bath
• Acid Brass
• Acid breaks
• Acid burn
• Acid catalysis
• Acid catalyst
• Acid (chemistry)
• ACID (computer science)
• Acid (computer virus)
• Acid constant
• Acid decomposition
• Acid deposition
• Acid (disambiguation)
• Acid dissociation constant
• Aciddraw
• ACiDDraw
• Acid dye
• Acid Eaters
• Acid Eaters (album)
• Acid (electronic music)
• Acidemia
• Acid erosion