Size Matters (disambiguation)

Size Matters is an album by the band Helmet.

Size Matters may also refer to:

• Cultural and sexual perceptions of the size of the human penis
• "Size Matters (Someday)", a hit country song recorded by Joe Nichols
• "Size Matters" (Charmed), a 2001 American television episode
• "Size Matters" (Coupling), a 2000 British television episode
• Size Matters, the second issue of the comic book M. Rex
• "Size Matters", a 2004 song by Natasha Bedingfield from Unwritten
• Ratchet & Clank: Size Matters, a video game for PSP and PS2