The Brazil striker terminated home with a heavenly free kick after Yuri Berchiche had opened the scoring on the stroke of halftime, with Giovani Lo Celso fixing a direct triumph in the end arranges.
The win put PSG on 62 focuses from 24 amusements with second-put Olympique de Marseille, who pounded Metz 6-3 away on Friday, on 51.
Lille are seventeenth on 25 focuses, one point above security.
PSG proceeded in the 45th moment when Berchiche got with a low shot after the Lille barrier had neglected to clear Edinson Cavani's cross.
Neymar, who was far fetched in the wake of taking a thump not long ago, multiplied the count with a 17-meter free kick into the best corner.
Lo Celso at that point scored his first Ligue 1 objective with a fine throw over Mike Maignan in the 87th.