As in, "is he a real character, not a figment of another character's imagination"?
If so - yes. Sure, he is ignored a lot but I don't think there's anything in there that would suggest he was imaginary.
If you meant, "is he based on a real person?" - no, not to my knowledge.
The Big Lebowski was released in 1998.
The Production Budget for The Big Lebowski was $15,000,000.
The Big Lebowski grossed $17,498,804 in the domestic market.
The Big Lebowski... he had "Bunny Lebowski" and a "Nihilist" floating in his pool.
Maude Lebowski (Julianne Moore) in Big Lebowski
The Big Lebowski was released in 1998.
The duration of The Big Lebowski is 1.98 hours.
The Production Budget for The Big Lebowski was $15,000,000.
The Big Lebowski was created on 1998-02-24.
Julianne Moore plays Maude Lebowski.
The Big Lebowski
The Big Lebowski grossed $46,189,568 worldwide.
The Big Lebowski grossed $17,498,804 in the domestic market.
The cast of The Big Lebowski 2 - 2011 includes: James Adomian as The Stranger
Otomix...I have a pair for my Lebowski costume.
Which pair there were several...
Pomeranian (with papers)