Nicki Sørensen (born 14 May 1975) is a Danish former professional road bicycle racer, and was directeur sportif of UCI Professional Continental team Aqua Blue Sport and NSN Cycling Team. He competed in five consecutive editions of the Tour de France from 2001 to 2005. Riding as an all-round rider who rode well in hilly terrain, Sørensen was a valued support for the team leader without many wins of his own.