Mark Hollis (born December 1, 1984) is an American track and field athlete who competes in the pole vault.

[4] Hollis had his first major circuit victory at the 2010 Millrose Games, beating national rivals Derek Miles and Tim Mack.

[6] He began competing abroad and was the victor at the Grande Premio Brasil Caixa de Atletismo meet and Golden Roof Challenge in Austria.

[4][7] Tough conditions at the 2010 USA Outdoor Track and Field Championships worked in Hollis's favour, as only he and Derek Miles managed to clear 5.60 m (18 ft 4+1⁄4 in) in the strong winds.

Having achieved the previous "A" selection standard, he was chosen for the 2011 World Championships in Athletics ahead of national third-placer Nick Mossberg.

He placed in the top three of both the Brazilian Athletics Tour meets he competed at and was runner-up at the Ponce Grand Prix with a clearance of 5.60 m (18 ft 4+1⁄4 in).

[4] Hollis returned to top level form in 2014, taking consecutive wins at the Millrose Games then the USA Indoor Championships for his third national title.

[11] He was fourth at the World Challenge Beijing meet and finished the 2014 USA Outdoor Track and Field Championships as the runner-up with his best of 5.70 m (18 ft 8+1⁄4 in), second to Sam Kendricks.