Saints Row 3 is reportedly called Saints Row: The Third.
That's according to what looks like genuine promotional art, leaked by a forum poster on NeoGAF.
One poster reveals the game's tagline: "Strap it on holiday 2011."
Publisher THQ had already confirmed an autumn release for the over-the-top open world action sandbox.
"Volition is setting a new bar for this outstanding franchise and we look forward to unveiling this game in the near future," CEO Brian Farrell said earlier this month.
"I have been placed under a very tight gag order by our Saints Row team. Hang in there: you're going to love it."
The last game in the series, Saints Row 2, launched in October 2008, winning a glowing 9/10 endorsement from Eurogamer.