Jan Berg may refer to:

• Jan Berg (footballer born 1943) Norwegian footballer who played for FK Lyn
• Jan Berg (footballer born 1965) Norwegian footballer who played for Molde FK
• Jan Berg (Finnish footballer), born 1985

• Pyralis obliquana
• Pyralis obscurana
• Pyralis obsoletalis
• Pyralis obstructalis
• Pyralis ocellana
• Pyralis ochrealis
• Pyralis oegnusalis
• Pyralis olivalis
• Pyralis ornatalis
• Pyralis palaestinensis
• Pyralis pallidalis
• Pyralis palustralis
• Pyralis pariana
• Pyralis pectinalis
• Pyralis pectitalis
• Pyralis pelasgalis
• Pyralis perfusalis
• Pyralis perspectalis
• Pyralis perversalis
• Pyralis pflugiana
• Pyralis pillerana
• Pyralis pinguinalis
• Pyralis politalis
• Pyralis pollinalis
• Pyralis populana