E100

E100 or E-100 may refer to:

Electronics

• Casio Cassiopeia E-100, a pocket-size PC
• iRiver E100, a portable media player

Vehicles

Automobiles

• Baojun E100, a Chinese electric microcar
• JMEV E100, a Chinese electric city car
• Toyota Corolla (E100), a Japanese compact car lineup

Military vehicles

• Panzerkampfwagen E-100, a proposed German World War II super-heavy tank

Other uses

• Curcumin, food coloring from turmeric designated by E number E100
• Neat ethanol fuel, or E100, a fuel blend with almost 100% ethanol