PA 103 can refer to:

• Pan Am Flight 103
• Pennsylvania Route 103

• FOD Walk
• Fody
• Fodé Mansare
• Fodé Soumah
• FOE
• Foe (book)
• Foederal
• Foederal Republic of Germany
• Foederatii
• Foederatio Internationalis Una Voce
• Foedus Cassianum
• Foedus pacificum
• Foe (EP)
• Foe-Gotten Years
• Foehn cloud
• Foehn effect
• Foehrenwald
• Foeke Booy
• Foel Crochan
• Foel Cwmcerwyn
• Foel Fenlli
• Foel Fras
• Foel Grach
• Foel Grochan
• Foel Gron