The Cafe in Frasier is called Cafe Nervosa.
I think the restaurant that Frasier and Niles often went to is Le Cigare Volone.
Addition:
Le Cigare Volante to be exact.
For the Majority of the season Martin Crane frequented Mcginty's Bar. but he originally was a patron of Duke's until it was torn down
Stefano's, I believe.
Le cigar velon
McGintys
Episode 2.23 - The Innkeepers
The name of his favorite steak restaurant is The Timber Mill.
Debbie
Eddie
Frederick Gaylord Sternin Crane is the son of Frasier and Lilith Sternin. Nick named "Freddy".
Luigi's
Episode 2.23 - The Innkeepers
Duke's and McGinty's. Duke's was destroyed though.
The name of his favorite steak restaurant is The Timber Mill.
Dr Frasier W Crane's middle name is Winslow.
The Cranes by Peter Meinke
Nandos:) he loves it. And you spelled his name wrong, its Niall
Baby Boomers Cafe
Frederick
The building in which Frasier lived was The Elliot Bay Towers
Frasier's son Frederick's real name is Luke T. and later on his surname is mentioned as Richards.
Probably the giant creme brule available at Arnold and Maria's favorite restaurant.