List of first gentlemen in the United States
In the United States, the title of first gentleman may be accorded to a man who is married to the head of state of a state government, analogously to the unofficial use of first lady for the wife or hostess of a head of state, including the wife of the president of the United States. Doug Emhoff became the first second gentleman of the United States when his wife Kamala Harris became vice president in 2021.
Source: Wikipedia — List of first gentlemen in the United States (CC BY-SA 4.0)