The rooftop bar at Bangkok Marriott Marquis Queen’s Park divides a beautiful space overlooking Benjasiri Park into two floors and two bars, one with a focus on dark spirits, one specializing in gin. They claim to stock every gin legally available in the Kingdom.

Collection: 75 labels, aiming for 80 in the coming months.

Tonics: Fentimans as house pour on top of Fever Tree, Lamb & Watt, Thomas Henry, 1724, East Imperial, Bangkok Soda and San Pellegrino.

Must-try cocktail: Asian Wind (Martin Miller’s Gin, sake, homemade yuzu & mango cordial, and lime juice, B375).

37-38/F, Bangkok Marriott Marquis Queen’s Park, 199 Sukhumvit Soi 22, 02-059-5555. Open daily 5pm-1am, 7pm-1am

Iron Balls

Ashley Sutton, of Iron Fairies and Maggie Choo’s fame, has two branches of his gin distillery, Iron Balls, one of which sits right beside another of his creations, Sing Sing Theater. There might only be one gin label on the menu (recently named Best Gin at the Cocktails & Spirits Fair in Paris), but we can’t get enough of it.

Collection: Only Iron Balls.

Tonics: Eight in total, including Fever Tree, Fentimans and Double Dutch.

Must-try cocktails: Spitcock (Iron Balls gin, fresh passionfruit and roselle, B360).

Parklane Sukhumvit Soi 63, 02-714-2269. Open daily 6pm-1am 

Sukhumvit Soi 45, 02-662-4478. Open daily 8pm-1am

Junker & Bar

Osito Unique Spanish

The first Bangkok bar to specialize in gin is built from the remains of a near-crumbling shop-house. Co-owner and mixologist Niks Anuman-Rajadhon stockpiles an apocalypse-ready supply, while  the venue’s small, dimly-lit room gets rammed every weekend.

Collection: 90+ labels

Tonics: Fever Tree, Thomas Henry, Fentimans

Must-try cocktail: Guava Plum Gin Tonic (double gin infusion with guava and plum, Fever Tree tonic, garnished with plum and pomegranate, B380)

76 Soi Nana (Charoenkrung Rd.), 081-443-3784. Open Wed-Sun 6pm-12:30am. MRT Hua Lamphong