AICAR may refer to:

• Asian Institute of Communication and Research, better known as AICAR Business School, Matheran, India
• Acadesine
• AICA ribonucleotide
• Inosine monophosphate synthase, an enzyme

• Carniole
• Carnisse
• Carnisserbuurt
• Carnitinamidase
• Carnitine acetyltransferase
• Carnitine O-acetyltransferase
• Carnitine O-octanoyltransferase
• Carnitine palmitoyltransferase
• Carnitine palmitoyl transferase 1 deficiency
• Carnitine palmitoyl transferase 2 deficiency
• Carnitine palmitoyltransferase deficiency
• Carnitine palmitoyltransferase i
• Carnitine-palmitoyl transferase I
• Carnitine palmitoyl transferase I
• Carnitine palmitoyltransferase i deficiency
• Carnitine palmitoyltransferase ii
• Carnitine palmitoyltransferase ii deficiency
• Carnitine palmityl transferase deficiency type 1
• Carnitine shuttle
• Carnitine transporter deficiency
• Carnitin Transporter Deficiency
• Carnitor
• Carnivac
• Carnival (1931 film)
• Carnival (1946 film)