Sitefinder may refer to:

• Site Finder, a wildcard DNS record for all .com and .net unregistered domain names, run by .com and .net top-level domain operator VeriSign during 15 September – 4 October 2003
• Sitefinder database, an incomplete list of mobile phone base stations in the UK

• Herculia taiwanalis
• Herculia tenuis
• Herculia thyellodes
• Herculia thymetusalis
• Herculia tristalis
• Herculia umbrosalis
• Herculia venezuelensis
• Herculia violaceomarginalis
• Herculia vulgaris
• Hercu Liebenberg
• Herculina (asteroid)
• Herc Vollugi
• Hercyna
• Hercyna ambigualis
• Hercyna anartalis
• Hercyna andereggialis
• Hercyna expansalis
• Hercyna guttulalis
• Hercyna heliothalis
• Hercyna helveticalis
• Hercyna intricalis
• Hercyna lugubralis
• Hercyna originalis
• Hercyna pyrenaealis
• Hercyna sericatalis