--- title: "The O.S.S Bar" description: "Kasem San 2 in Siam hosts The O.S.S Bar, bringing live music and dancing with cocktails and wine at varied price levels throughout." url: https://bestofthailand.org/place/the-o-s-s-bar-9a615f locale: en --- # The O.S.S Bar ![The O.S.S Bar](https://bestofthailand.org/images/pool/cat-nightlife-clubs-4.webp) 4.9(308 reviews) Nightlife & Clubs · Siam (Pathum Wan) · ฿200–1,200 Kasem San 2 in Siam hosts The O.S.S Bar, bringing live music and dancing with cocktails and wine at varied price levels throughout. #15 of 62 nightlife & clubs in Siam (Pathum Wan)+0.3 vs the Siam (Pathum Wan) average of 4.6 ## Reviews No reviews yet — be the first. ### Write a review Rating ## Contact & details **Address** 6 Kasem San 2 Alley, Wang Mai, Bangkok **Phone** [+66 63 273 0719](tel:+66 63 273 0719) **Website** [Visit website](https://nightify.co/book/the-oss-bar/google) **Price range** ฿200–1,200 **Quiet hours** Quietest today: 13:00–15:00 · Busiest: 22:00Google popular-times estimate **Details last verified** September 2026 ## What Google lists **Food & drink** Serves alcoholCocktailsBeerWineHappy hourOutdoor seatingDine-inTakes reservations **Going out** DancingLive performancesSpirits **Payments** Credit cardsDebit cards **Amenities** ParkingRestroomLive music Attributes as published on Google Maps, last checked 8 September 2026 — reported by the business or by visitors, not verified by us. Google publishes these as present/absent only, so a missing chip means Google lists nothing, not that the place lacks it. [Map showing the location of The O.S.S Bar](https://www.openstreetmap.org/export/embed.html?bbox=100.5233852,13.7463237,100.5333852,13.7523237&layer=mapnik&marker=13.7493237,100.5283852) · [Open in Google Maps](https://www.google.com/maps/search/?api=1&query=13.7493237,100.5283852) ## Getting there - [BTS National Stadium](https://bestofthailand.org/bangkok/near/bts-national-stadium) (W1) · 320 m · 5 mins walk - [BTS Ratchathewi](https://bestofthailand.org/bangkok/near/bts-ratchathewi) (N1) · 440 m · 6 mins walk Straight-line distance at 80 metres a minute — the real walk is longer wherever a canal or a superblock gets in the way. [Is this your business? Claim it](https://bestofthailand.org/for-businesses) ## Similar places nearby **[Human Friendly Bar](https://bestofthailand.org/place/human-friendly-bar-c8324e)** — ![Human Friendly Bar](https://bestofthailand.org/images/pool/cat-nightlife-clubs-1.webp) — 5.0 — Nightlife & Clubs · Siam (Pathum Wan) — Open nowuntil 02:00฿฿฿LGBTQ+ friendlyFree Wi-Fi — Human Friendly Bar is a bar at NEXTOPIA on Rama I Road in Pathum Wan, in the Siam (Pathum Wan) district, with live music. **[Hendrick's Gin Bar](https://bestofthailand.org/place/hendrick-s-gin-bar-f28765)** — ![Hendrick's Gin Bar](https://bestofthailand.org/images/pool/cat-nightlife-clubs-4.webp) — 5.0 — Nightlife & Clubs · Siam (Pathum Wan) — On the fifth floor of 991 Rama I Road in Siam, this gin bar focuses exclusively on its core spirit in a compact setting. **[Jacob Creek (Gourmet Market) Siam Paragon](https://bestofthailand.org/place/jacob-creek-gourmet-market-siam-paragon-a2c7cd)** — ![Jacob Creek (Gourmet Market) Siam Paragon](https://bestofthailand.org/images/pool/cat-nightlife-clubs-8.webp) — 5.0 — Nightlife & Clubs · Siam (Pathum Wan) — Open nowuntil 22:30 — Jacob Creek wine bar and gourmet market operates within Siam Paragon in Pathum Wan, pairing wines with curated food selections for dining. **[PICHÉ Wine tap @ Nextopia](https://bestofthailand.org/place/piche-wine-tap-nextopia-a457b6)** — ![PICHÉ Wine tap @ Nextopia](https://bestofthailand.org/images/pool/cat-nightlife-clubs-6.webp) — 5.0 — Nightlife & Clubs · Siam (Pathum Wan) — PICHÉ Wine tap @ Nextopia sits inside Siam Center on Rama I Road, offering wine in Bangkok's central shopping district. ## Within 600 metres Measured from this listing's coordinates, not from its district — same category first, then whatever else is on the doorstep. **[Philtration](https://bestofthailand.org/place/philtration-799f18)** — ![Philtration](https://bestofthailand.org/images/pool/cat-nightlife-clubs-5.webp) — 4.7 — Nightlife & Clubs · Siam (Pathum Wan) — Open nowuntil 01:00Quiet now฿฿฿Free Wi-Fi — Philtration, located on Kasem San 3 Alley in Siam, combines live music with mid-range cocktails and a noted beer selection for evening crowds and patrons. 120 m · 2 mins walk **[FEATLAB](https://bestofthailand.org/place/featlab-054262)** — ![FEATLAB](https://bestofthailand.org/images/pool/cat-nightlife-clubs-3.webp) — 4.6 — Nightlife & Clubs · Ratchathewi & Pratunam — Open nowuntil 23:00฿฿Free Wi-Fi — FEATLAB is a bar on Phaya Thai Road in Thanon Phetchaburi, in the Ratchathewi & Pratunam district, with happy hour drinks. 290 m · 4 mins walk **[The Crystal Lobby Bar](https://bestofthailand.org/place/the-crystal-lobby-bar-28359d)** — ![The Crystal Lobby Bar](https://bestofthailand.org/images/pool/cat-nightlife-clubs-3.webp) — 4.8 — Nightlife & Clubs · Ratchathewi & Pratunam — Open nowuntil 01:00฿฿ — The Crystal Lobby Bar on Phaya Thai Rd in Ratchathewi serves mid-range cocktails and wine to evening crowds, welcoming reservations from groups and individual patrons. 340 m · 5 mins walk **[VIZ Lounge](https://bestofthailand.org/place/viz-lounge-bc53e7)** — ![VIZ Lounge](https://bestofthailand.org/images/pool/cat-nightlife-clubs-6.webp) — 4.5 — Nightlife & Clubs · Siam (Pathum Wan) — Open nowuntil 21:30Busy now — Lounge bar on Rama I in Siam's Pathum Wan with dancing and cocktails, rated 4.5 by 15 reviewers. 390 m · 5 mins walk