Lilo can mean:

• LILO - the LInux LOader bootloader for linux.
• lilo - lowercase - is Rob Levin , the founder of the Freenode IRC network.
• LILO is also an abbreviation for Last In Last Out in computer science (really FIFO).
• Lilo is also a British term for an inflatable air mattress.
• Lilo is the main character of Disney's 41st animated film, Lilo & Stitch.