1991 Salem Open
Date	1–7 April
Edition	16th
Category	World Series (Free Week)
Draw	32S / 16D
Prize money	$234,000
Surface	Hard / outdoor
Location	Hong Kong, Hong Kong
Champions
Singles
Richard Krajicek[1]
Doubles
Patrick Galbraith / Todd Witsken[2]
← 1990 · Hong Kong Open · 1992 →

The 1991 Salem Open was a men's tennis tournament played on outdoor hard courts on Hong Kong Island in Hong Kong that was part of the World Series of the 1991 ATP Tour. It was the 16th edition of the tournament and was held from 1 April through 7 April 1991. Unseeded Richard Krajicek won the singles title.^[3]

Richard Krajicek defeated Wally Masur 6–2, 3–6, 6–3

• It was Krajicek's only singles title of the year and the first of his career.

Patrick Galbraith / Todd Witsken defeated Glenn Michibata / Robert Van't Hof 6–2, 6–4

• It was Galbraith's 2nd doubles title of the year and the 5th of his career. It was Witsken's 1st doubles title of the year and the 9th of his career.

• ITF tournament edition details