Shar may refer to:

• shar (file format), an archive format created with the Unix shar utility
• Shar, Kazakhstan, a town in Zharma District
• Shar River [de], a left tributary of the Irtysh
• Shar (country subdivision), found in Iran and Azerbaijan
• BAE Sea Harrier, a British VTOL aircraft is nicknamed shar
• Shar (Forgotten Realms), a fictional goddess of the Forgotten Realms campaign setting for Dungeons & Dragons
• Matochkin Shar, an alternative name of the Matochkin Strait
• Shar Jackson (born 1976), American actress
• Yugorsky Shar, an alternative name of the Yugorsky Strait
• India's Sriharikota Range satellite launch facility before being renamed Satish Dhawan Space Centre in 2002
• Shar Mountains, a mountain range in Southeast Europe
• Shar, Libyan name for the Libyan genocide