The Belgian international claimed a one-two in April's voting with his equaliser at Southampton second in the fans' poll.
For the winning goal, Nacer picked up the ball in a central position, shifted onto his left foot and fired into the bottom corner. That picked up over 40% over the overall vote.
That was his ninth goal in the Premier League and 11th in all competitions this season and he soon followed Harry Kane and Christian Eriksen into double-figures in the Premier League by making it 2-2 at Southampton a week later, latching onto Eric Dier's pass and finishing well.
Harry Kane's 30th in all competitions to secure a 3-1 win at Newcastle came home third.
GOAL OF THE MONTH - APRIL RESULT
Nacer Chadli vs Newcastle - 40.5%
Nacer Chadli vs Southampton - 18.7%
Harry Kane vs Newcastle - 15.6%
Christian Eriksen vs Southampton - 13.4%
Erik Lamela vs Southampton - 11.8%
Below: Nacer speaks to Spurs TV at St James' Park