Vegan in Old Town Bangkok: Khao San, Phra Nakhon & Chinatown
The Old Town — the Grand Palace, Wat Pho, Khao San Road and Chinatown — is where most visitors spend their first days, and it happens to be one of the easiest parts of Bangkok to eat plant-based. Khao San's backpacker scene built a generation of vegan kitchens, and Yaowarat's Chinese-Thai heritage means jay food everywhere.
Everything below is within the old city or Chinatown, walkable from the riverside sights.
The list

Kem-Kon Khaosan
A 100% vegan Thai ‘street food by plant’ concept with several branches — familiar Thai dishes done entirely plant-based.

Mango Vegetarian & Vegan
A cosy vegetarian restaurant and art gallery near Khao San serving Thai and continental dishes (no alcohol), established 2014.

Ethos
A laid-back vegetarian/vegan spot near Khao San serving Thai and Western comfort food, smoothies and juices at backpacker prices.

Vegan Pranakhon- Khaosan Road วีแกนพระนคร- ถนนข้าวสาร
A fully-vegan restaurant serving plant-based Thai food in Wat Bowon Niwet. Good for groups. A well-reviewed local favourite (5.0★).

Kem-Kon Vegan Phahurat
A 100% vegan Thai ‘street food by plant’ concept with several branches — familiar Thai dishes done entirely plant-based.

May Kaidee (Tanao)
A veteran Thai vegetarian institution near Khao San, also famous for its popular Thai vegan cooking school.

VEGANERIE Grand Palace (วีแกนเนอรี วัดพระแก้ว)
Bangkok's first all-vegan dessert-and-comfort-food chain. Famous for vegan cakes, ice cream and all-day brunch — reliable, clearly labelled and easy for newcomers.

AGAR RAGA - อาการากา | The First AGAR Cafe คาเฟ่แรกที่ทุกจานทำจากวุ้น
A fully-vegan café serving plant-based Thai food in Chakkrawat. Does delivery, good for groups and takes reservations. A well-reviewed local favourite (4.9★).

VILLA Veg & Vegan Indian Restaurant
A vegetarian spot with vegan options, restaurant serving South & North Indian dishes in Wat Bowon Niwet. Good for groups. A well-reviewed local favourite (4.8★).

Jae Lee Vegan
A fully-vegan restaurant serving plant-based comfort food in Samphanthawong. Good for groups, has outdoor seating and easy on the wallet. A well-reviewed local favourite (4.7★).

Gyofu Vegetarian Dumplings - เกี๊ยวฟู
A fully-vegan restaurant serving vegan Japanese food in Chakkrawat. Does delivery and takes reservations. A well-reviewed local favourite (5.0★).

Royal Rasoi
A vegetarian spot with vegan options, restaurant serving South & North Indian dishes in Wang Burapha Phirom. Does delivery and takes reservations. A well-reviewed local favourite (4.7★).