1974 U.S. National Indoor Tennis Championships
Date	February 18–24
Edition	4th
Category	USLTA Indoor Circuit
Draw	58S / 22D
Prize money	$50,000
Surface	Carpet / indoor
Location	Salisbury, Maryland, U.S.
Venue	Wicomico Youth and Civic Center
Champions
Singles
Jimmy Connors[1]
Doubles
Jimmy Connors / Frew McMillan[2]
← 1973 · U.S. National Indoor Championships · 1975 →

The 1974 U.S. National Indoor Tennis Championships was a men's tennis tournament held at the Wicomico Youth and Civic Center in Salisbury, Maryland in the United States. The event was part of the 1974 USLTA Indoor Circuit. The tournament was held from February 18 through February 24, 1974, and played on indoor carpet courts. Second-seeded Jimmy Connors won the singles title and earned $9,000 first-prize money.

Jimmy Connors defeated Frew McMillan 6–4, 7–5, 6–3

• It was Connor's 5th singles title of the year, and the 22nd of his career.

Jimmy Connors / Frew McMillan defeated Byron Bertram / Andrew Pattison 7–5, 6–2

• ITF tournament edition details