No You do not, but
you must be at least 35 and be born a US citizen . You also have to lived in the US for 14 years.
No. There was one US president, James Buchanan, who never was married.
Grover Cleveland
No. Presidents can be single.
Gerald Ford was the US President that married Betty Ford. They married on October 15, 1948, when she was 31 years old. She was married to Gerald Ford for 58 years, until his death.
Aishwarya Rai
It was not and never has been a requirement in the US.
Ernest Kennedy
No US president ever did that. Jefferson Davis who later became the president of the Confederate States married the daughter of US president Zachary Taylor.Franklin Roosevelt married the niece of the president and the grandson of Eisenhower married the president's daughter.
It is difficult to answer this question, since you do not tell us which president you are asking about. Most of the presidents of the United States were married (or had been married but were widowers). Only one never married-- James Buchanan.
John Adams second president in US
The only US President to never marry was James Buchanan.
She married Bill Clinton a US president.