1A

• 1A (comics)
• 1A (radio program)
• A1 (disambiguation)
• AMY1A
• Adcox 1-A
• Alpha-1A adrenergic receptor
• Astra 1A
• Class 1-A
• Croatian 1A Volleyball League
• First Amendment (disambiguation)
• IA (disambiguation)
• Interferon beta-1a
• List of highways numbered 1A
• Little Joe 1A
• MH-1A
• Melatonin receptor 1A
• Meltwater pulse 1A
• Mercury-Redstone 1A
• Metallothionein 1A
• Packard 1A-1500
• Premier A Slovenian Basketball League
• Shin Meiwa US-1A
• Sisu 1A
• Türksat 1A
• Vasopressin receptor 1A