Gannet Island may refer to:

• Gannet Island (New Zealand) {{coord|37|58|19|S|174|33|58|E}}
• Gannet Island (Western Australia) {{coord|20|26|52|S|115|34|01|E}}
• Gannet Islands Ecological Reserve, NE Canada {{coord|53.934|-56.505}}

• Baldomero Lopez
• Baldomero Medina Garza
• Baldomero Toledo
• Baldomiria
• Baldo (name)
• Baldone municipality
• Baldone Parish
• Bal Dongtsap
• Baldonnel military airbase
• Baldons
• Baldo Prokurica
• Baldorias S. Fanghini
• Baldo Santana
• Baldo (surname)
• Baldo Ubaldi
• Baldovinetti
• Baldovineşti
• Baldovin (knez)
• Baldoyle Bay
• Bald Parrot
• Baldpate Mountain
• Baldpate oil field
• Bald Point, FL
• Bald Prima Donna
• BALDR FORCE EXE Resolution