Exa or EXA may refer to:

• exa-, a metric prefix denoting a factor of 10¹⁸
• EXA, a graphics acceleration architecture
• Ecuadorian Civilian Space Agency
• Exa Corporation, an American software developer
• Exa TV, a Mexican television channel
• My-HiME EXA, an anime comedy series
• Nissan EXA, an automobile
• Shining Force EXA, a video game
• Exa, a range of small-format Exakta cameras
• exa (command-line utility), a program for listing files
• Exa Dark Sideræl Musk, daughter of Grimes and Elon Musk

This disambiguation page lists articles associated with the title Exa.
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