Mon Plaisir is one of The 15 Best Places for French Onion Soup in London.

1. Mon Plaisir

7.5
19-21 Monmouth St, London, Greater London
French Restaurant · 28 tips and reviews

JohnJohn: Amazing French onion soup!

Hannah S.Hannah Smith: The French Onion Soup is good here... a liittle bit too cheesy, but great flavour. I like the relaxed environment and different styles to the roomsIt and it all feels authentic and French!

Daren W.Daren Williams: Classic French food surrounded by Frenchness. The French onion soup was tasty, and veal was good but rich. Skip the tartare.

The Red Lion & Sun is one of The 15 Best Places for French Onion Soup in London.

2. The Red Lion & Sun

8.6
25 North Rd, Highgate, Greater London
Gastropub · 44 tips and reviews

Chloe F.Chloe Fenton: French onion soup, rib-eye (MR) and salted caramel and choc tart makes for a gorgeous meal.

Paul P.Paul Pujol: Fantastic pub with great food and wine. Jersey Oysters and Muscadet by the glass was amazing. Nice people good atmosphere.

Paul D.Paul Dubois: Bring your dog and book in advance. Gets very busy as it is very popular. On a sunny day, it is best to sit out front. Good food and the occasional celebrity can be spotted. Lovely anytime of day.

Le Boudin Blanc is one of The 15 Best Places for French Onion Soup in London.

3. Le Boudin Blanc

7.7
5 Trebeck St, London, Greater London
French Restaurant · Mayfair · 30 tips and reviews

chris b.chris block: Best French Onion soup this side of the channel!

Nabil B.Nabil Bazzari: Lovely place. Love Shephard Market. Duck barbarie with potatp gratin was yummy

Emily K.Emily Knee: Visit Le Boudin Blanc and have succulent snails, sublime steak and salty caramel dessert Read more.

The Orange is one of The 15 Best Places for French Onion Soup in London.

4. The Orange

8.4
37-39 Pimlico Rd (St. Barnabas St), Belgravia, Greater London, Greater London
Gastropub · City of Westminster · 64 tips and reviews

Christian B.Christian Bisaillon: French onion soup is excellent

Matt B.Matt Barker: Great place - amazing Sunday roasts too

LondonistLondonist: Officially the world's most wooden pub.

Côte Brasserie is one of The 15 Best Places for French Onion Soup in London.

5. Côte Brasserie

8.1
6-8 St.Christopher's Place, London, Greater London
French Restaurant · Marylebone · 77 tips and reviews

James D.James Davidson Smith: Great French onion soup, and wonderful peppercorn steaks. The duck was also good. The whole family was delighted with the experience. Very noisy, however, and it was slightly difficult to talk.

PelismoPelismo: Pre theatre lunch menus are great value. Go with steak and fries.

Anas A.Anas AlShaikh: Great atmosphere outside. Perfect breaded calamari. Would suggest the house special, the rump of lamb. Creme caramel to end the night with a delightful experience.

Balthazar is one of The 15 Best Places for French Onion Soup in London.

6. Balthazar

8.6
4-6 Russell St, Covent Garden, Greater London
Brasserie · City of Westminster · 273 tips and reviews

Tarryn B.Tarryn Blackwood: French onion soup was incredible. Duck confit was possibly the saltiest thing I've ever eaten. Service was amazing. Bonus points: we spotted Helena Bonham Carter eating at a nearby table.

Richard F.Richard Foo: NYC based French bistro style restaurant, with great ambience, good food and friendly service. French Onion Soup, Steak Au Pouvre, Sole Meunière all good. The bomb? Raspberry Soufflé! Don't miss that!

Utku G.Utku Göksoy: Eggs royale is delicious! Service is perfect!

The Wallace Collection is one of The 15 Best Places for French Onion Soup in London.

7. The Wallace Collection

9.0
Hertford House (Manchester Sq), London, Greater London
Art Museum · Marylebone · 98 tips and reviews

Gemma B.Gemma Bevan: Try the restaurant for the best french onion soup outside of France. The ice cream sundaes also have to be tasted to be believed.

Paul H.Paul Hutchinson: Simply beautiful. Go here for lunch and then peruse the galleries.

LondonistLondonist: Forget the objets d'art. Just look at that wallpaper.

Palm Court Brasserie is one of The 15 Best Places for French Onion Soup in London.

8. Palm Court Brasserie

7.1
39 King St, London, Greater London
French Restaurant · City of Westminster · 22 tips and reviews

WhennoufeatsWhennoufeats: French onion soup, whole tiger prawns and breaded chicken escalope

Thom G.Thom Geraghty: French onion soup and Beef bourguignon were great and filling.

Kaisla G.Kaisla Grönroos: so fantastic food and good service ! I would go there an other time.

The Foyer & Reading Room is one of The 15 Best Places for French Onion Soup in London.

9. The Foyer & Reading Room

8.9
49 Brook St, Mayfair, Greater London
Lounge · 16 tips and reviews

Tasting L.Tasting London: Great wine-tasting dinner there, cool people as well ! I discovered lots of great bottles and made many new friends

Bruno Ernesto S.Bruno Ernesto S.: Best Afternoon Tea in London 🍰🍸👌

Abu Aya K.Abu Aya KD: Anyone for a spot of Afternoon Tea

The Belvedere is one of The 15 Best Places for French Onion Soup in London.

10. The Belvedere

8.5
Off Abbotsbury Road, London, Greater London
Restaurant · Kensington and Chelsea · 11 tips and reviews

Cassandra W.Cassandra Wilson: Beautiful location in Holland Park. Menu had variety of choices that make you want to try something new. Ribeye is very good and can be served with escargots instead of sauces. Staff service perfect!

Lucy A.Lucy Andrews: Beautiful room, lovely Hake Dish and good Provence rose selection.

David G.David Gee: Amazing ambience

Ma Cuisine is one of The 15 Best Places for French Onion Soup in London.

11. Ma Cuisine

7.8
Station Approach, Kew, Greater London
French Restaurant · 10 tips and reviews

StrolmStrolm: my favourite place for coq au vin in the neighbourhood. friendly & fast service.

Karen F.Karen Fewell: A great little find! Fantastic food and service and plenty of gluten free options for me. No big fuss when I told them I was coeliac, knew the answers to what was/wasn't suitable immediately.

Pascal H.Pascal Hartig: Food is very rich here, if you're into healthy food, maybe look somewhere else.

Blue Door Bistro is one of The 15 Best Places for French Onion Soup in London.

12. Blue Door Bistro

8.0
15 Montague Street, Bloomsbury, Greater London
English Restaurant · 6 tips and reviews

Yiota P.Yiota Pap: Nice atmosphere and quick service. The food is really good, especially the duck cottage pie :-)

MichelleMichelle: 3 words: Vanilla salted butter. Try it.

Liz L.Liz Lawley: Try the vanilla salt with the focaccia bread. Heaven!

Chiltern Firehouse is one of The 15 Best Places for French Onion Soup in London.

13. Chiltern Firehouse

8.9
1 Chiltern St, London, Greater London
Modern European Restaurant · Marylebone · 288 tips and reviews

Helen Z.Helen Zhang: Steak steak steak. I've had it twice and it's been stellar both times. I loved the French onion soup steak! (Ok, I'm not a steak purist)

Manar AlghafisManar Alghafis: Love the outdoor seating ❤️ order pancakes with blueberries 100%

RobertaRoberta: Great modern take on american food, Slow drink Service at vip bar, too many paparazzis in the front, celebs inside & lindsay lohan taking selfies in the bathroom. Worth the hype! Book in advance.

Le Garrick Brasserie is one of The 15 Best Places for French Onion Soup in London.

14. Le Garrick Brasserie

8.3
10 Garrick St, London, Greater London
Brasserie · City of Westminster · 30 tips and reviews

Veronika P.Veronika Poliakova: Amazing everyday french cuisine and fantastic ambient! 🥰

Craig C.Craig Canham: The best French Restaurant in central London. I have been going for nearly eight years now - thoroughly recommend it....!!!!

Wilson M.Wilson Ma: Very nice Duck with Orange

Côte Brasserie is one of The 15 Best Places for French Onion Soup in London.

15. Côte Brasserie

7.7
4-6 Islington Gn, Islington, Greater London
French Restaurant · 9 tips and reviews

Simon D.Simon Donaldson: Good value classic restaurant. All the wines are great. The water is very clear.

Yakaday K.Yakaday Koroma: Good food great service great place for a nice pleasant lunch

BonnieBonnie: Great food for a decent price