Here’s a bunch of other places worth mentioning, that also serve some French bakery treats in Vienna:
Café Le Bol
Their Éclair and Bombe au chocolat are as French as they get!
Midi
The French bistro in the 1st district known for its great lunch to go, also offers a beautiful and colourful range of tartes to go with your French cuisine.
Marco Simonis
The delicatessen shop/restaurant on Dominikanerbastei features a selection of baguettes, croissants (small/big), pain au chocolat and palmier pastries (also to take away).
Süssmund Kaffee
The specialty coffee shop has a impressive croissant and pain au chocolat sourced straight out of France!
Felzl
This hipster bakery chain features one of the best French-style baguettes being done by a Viennese baker in Vienna, chapeau!
Ströck
Thanks to Ströck Feierabend and French head of pâtisserie, Pierre Reboul, the long-established Viennese bakery-chain has a new edition of croissant that is surprisingly close to the original.
Joseph Brot (Landstraße)
The Viennese boutique bakery has a great croissant and a selection of beauitful pâtisserie, maybe not overly authentic French, but definitely very close to it.