Gul, Gül or GUL may refer to:

• Gul (name), people with the given name or surname
• Gran Unión Liberal (Great Liberal Union), a Nicaraguan political party
• Gul (design), a design element in oriental carpets
• Gul (toothpaste), also known as gudakhu, tobacco preparation used in Central Asia and eastern India
• Gul, South Khorasan, a village in South Khorasan Province, Iran
• Gul, West Azerbaijan, a village in West Azerbaijan Province, Iran
• Gul Mosque, Istanbul, Turkey
• Gul (clothing), British company
• Gul (watersports), British company
• Gul, a fictional Cardassian military rank in the Star Trek franchise
• Games UpLate Live, a late night Filipino television show
• ISO 649 code for the Gullah language, spoken along the Atlantic coast of the United States
• Gül Train, a freight train service between Pakistan and Turkey via Iran
• Gul Circle, area in Singapore

Gul is a Persian and Turkish name, it is also used as a family name, which is common in Central and South Asia, Afghanistan, Iran, and Turkey. The term also refers to the central medallion of many Turkish carpets.