Scion may refer to:

• Grafting, where the scion is a detached shoot or twig containing buds from a woody plant
• Kinship and descent, where the scion is a descendant or heir
• Scion (car), a new marque of Toyota Motor Sales, USA
• Atlantean Scion, a fictional device of untold power invented for the video game Tomb Raider
• Scion (magazine), an early 1900s "Fictitious Science" (Science Fiction) pulp magazine
• Short Scion, a light transport flying boat from World War II-era Britain
• Scion, a comic book published 2000-2004 by CrossGen Comics