Steve Guy (born 15 March 1959) is a former professional tennis player from New Zealand.

[1][2] Guy appeared in the singles draw of three Australian Opens and never progressed past the second round.

In doubles he competed in five Grand Slams but registered just one win, in the 1988 Australian Open, with countryman Bruce Derlin.

At the Benson & Hedges Open, which he entered as a wildcard, he upset second seed and world number 25 Miloslav Mečíř.

[4] He also played tennis for the New Zealand Davis Cup team, taking part in seven ties.