U-232 may refer to:

• {{GS|U-232}}, a German Type VIIC submarine used in World War II
• Uranium-232, one of the isotopes of uranium

• Maniquin
• Maniqui River
• Mani Ram Bagri
• Manirang
• Mani Rao
• Maniraptorans
• Maniraptoriform
• Manirathnam
• Maniri Bala
• Maniri Payan
• Maniry
• Manisa 19 Mayis Stadium
• Manisa Celal Bayar University
• Manis (actor)
• Manisa Ili Province, Turkey
• Manisan (Chungcheongbuk-do)
• Manisanda
• Manisan (Incheon)
• Man Is a Woman
• Manisca Mare River
• Manisch
• Manis culionensis
• Manises Airport
• Manises airport
• Manises UFO Incident