Chinese
Let’s start with the obvious: London has a massive Chinatown right in the middle of the city, based on and around Gerrard Street in the West End.  You can’t really miss it: the Chinatown street entrances are flanked by huge Chinese arches and the street signs are suddenly bilingual.  Along here you’ll find Chinese restaurants of all kinds: traditional or modern, full on sit-down dinners or takeaways, high end and subtle or cheap and cheerful with cooked ducks hanging in the window.   There are also many Chinese supermarkets around for those who wish to get creative in their own kitchens.  This is largely acknowledged as the best place to go in London for Chinese food, but the area is also bright, vibrant and attractive, and worth visiting anyway.

Jewish
Looking for some kosher goodies?  Parts of the northwest of London have long been popular Jewish areas, and so head to Golder’s Green for kosher cafes and restaurants.  Check out Dizengoff (118 Golders Green Road), Coby’s (115A Golders Green Road), Pita (98 Golders Green Road) or Solly’s (146-150 Golders Green Road).

Japanese
Pinning down a Japanese area isn’t that easy, but there is quite a high concentration of them around Piccadilly.  Along with So Restaurant and Sushi Bar (3-4 Warwick Street), Misato (11 Wardour Street) and Kintaro (26-27 Lisle Street), you’ll also find the Japan Centre (14-16 Regent Street) with Toku Restaurant next door.  For the do-it-yourself-ers, you’ll find a whole host of Japanese and East Asian supermarkets along Brewer Street.

South Korean
Nobody is quite sure exactly how it happened, but New Malden, just outside Southwest London, is a strong South Korean community, chock-full of restaurants which really are the genuine article.  Popular restaurants are Sorabol (180 New Malden High Street) and Su La (79-81 Kingston Road), but you’ll find many of varying budgets throughout the area.

Portuguese
Talking of unlikely foreign communities, the largely rather grim Stockwell has found itself home to a large number of Portuguese, and as such a massive amount of restaurants.  If you fancy a taste of the Mediterranean and something slightly more exotic than high-rise flats, check out O’Cantinho (135-137 Stockwell Road), Porto of London (82 Landor Road), A Toca (343 Wandsworth Road), Solneve (523 Wandsworth Road) and, of course, all the Nandos restaurants you could want.

Indian
A more popular, well-known one: while you can get a curry anywhere in the country, let alone London, the East End’s Brick Lane is a thriving Bangladeshi community, and the food here is understandably popular.  No singling out: just wander round the area until somewhere takes your fancy.

Turkish
 Up in the north of London is Green Lanes, and here you’ll find a bustling Turkish community, along with dozens of Turkish restaurants.  Along this long road you’ll see Beyti Ocakbasi (number 113), Sariyer Balik (number 56), Diyarbakir (number 69), Harran Restaurant (number 399), Hala (number 29) and Canli Balik (number 131), all recommended for their food and value for money.