The Brazilian is currently sidelined with injury and did not play in PSG's draw against Strasbourg on Saturday.
Lionel Messi scored the opener in a 1-1, overtaking Cristiano Ronaldo's record for most goals in Europe's top five leagues with 496.
But ex-PSG star Kevin Gameiro equalised late on but by then, it made little difference.
A draw was enough to push them four points ahead of second-placed Lens with one match left in Ligue 1, handing PSG the title for a second season in a row.
However, Neymar appeared not to be present as he was participating in a poker tournament in Monte Carlo.
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Fans posed for pictures with the 31-year-old, who played alongside members of F1's media team ahead of the Monaco GP on Sunday.
Despite PSG winning the title, there were muted celebrations at full-time.
They had basically won the league last week after going three points clear of Lens due to their superior goal difference.
It has been a somewhat disappointing campaign for the Parc des Princes outfit despite lifting the title after crashing out of the Champions League at the first knockout stage.
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But it has not affected Neymar too much, who was also in attendance at the Monaco GP on Sunday.
He posed for pictures alongside Spider-Man actor Tom Holland, who has developed a close affinity with PSG.
The 26-year-old has met Kylian Mbappe and Messi and has been invited into the dressing room on occasion.
Meanwhile, Neymar's future at the Parc des Princes is unclear amid speculation he could leave this summer.
Manchester United have been linked with a shock move as PSG look to move the 31-year-old on.
Chelsea have also been reported to have an interest in the forward, who has spent six years in France after his blockbuster £199million move from Barcelona in 2017.
In the Formula One, Max Verstappen is looking to extend his lead at the top of the table in Monaco.
The Red Bull driver is 14 points ahead of teammate Sergio Perez and is the clear favourite to clinch the World Championship.
Verstappen won last year's competition in controversial circumstances ahead of Lewis Hamilton.