A G visa is a category of official visas issued to diplomats, government officials, and international organization employees who are visiting the United States temporarily for a governmental purpose.

G visas may also be issued to immediate family members of the principal visa holder. G visas are issued by the United States Department of State.

G visas are not issued to heads of state, who are instead granted an A-1 visa.

There are five visas in the G visa category:

An individual is generally allowed to retain G-1, G-2, G-3, or G-4 status for as long as the person is recognized by the U.S. Secretary of State.

G visas give work authorization to the primary holder of the visa. A family member with a G visa is eligible to apply for work authorization and only if the individual is a married spouse, an eligible domestic partner, an unmarried child under age 21, an unmarried child under age 23 who is a full-time student at a college or university, or an unmarried child of any age who is physically disabled or mentally disabled.