Mac King (born December 2, 1959) is an American magician who has performed on television specials, often as a co-host. He has his own family-friendly show, "The Mac King Comedy Magic Show", at the Excalibur Hotel and Casino in the Thunderland Showroom, in Las Vegas, Nevada. King's show is currently the longest running one-man show in the history of Las Vegas.

After college graduation King began touring the comedy clubs with his one-man comedy magic act. Over the next nineteen years his career took off, to such an extent that for years he did over 200 shows a year.

In the nineties he began to do television specials, and to appear at Las Vegas casinos.

In January 2000, King became a permanent act at Harrah's, performing 10 shows a week.

In addition to the TV specials and Harrah's performances, King performs at more than 60 private corporate events each year. Some of his better-known effects involve goldfish, Fig Newtons, and a yellow raincoat he claims is a magic cloak of invisibility.

In 2021 Mac King moved to the Excalibur after 20 years at Harrah's Las Vegas.

On the NBC The World's Greatest Magic specials, King taught the audience a minor effect before and after each commercial in segments referred to as the Mac King School of Magic. He is the only magician to be in all five of the network's specials.

King's home was also featured on HGTV.