A BJ bar (blowjob bar) is a Bangkok specialty: a small, dim bar built around one quick service — oral, done discreetly right there in a curtained booth or a back corner, no hotel run, no stage show. You buy the hostess a lady drink, settle the BJ price, and you're in and out. It's the fastest, cheapest entry point in the whole scene.
Reckon 700~1,500฿ for the service, plus a lady drink (around 150~200฿). Some bars price it flat, others let the girl quote — agree the number before anything starts, and a tip on top for good service is normal. No barfine, no take-out: the whole transaction lives inside the bar.
The clusters are Soi 33, Soi 22, and the Patpong/Silom area, with more on the ground floor of Nana Plaza. Doors open early evening, busiest 21:00~01:00. BJ bars are one of Bangkok's most-searched adult categories, so the lineup turns over fast — the 7 bars below are live-ranked by 7-day visitor traffic and recent reviews. Updated daily.