Black Hat USA 2027 Las Vegas

How full will Vegas be during Black Hat USA 2027?

Busy: expect firmer rates near the venue; book private dining and group blocks early.

Black Hat USA 2027 falls mostly in the week of Aug 2, 2027, which we rate Busy: about 57,333 trade-show attendees in town (pro-rated), counting Black Hat USA 2027 and 3 other tracked shows that overlap its dates.

1 show(s) in this window have no published attendance, so the real number is higher.

Overlapping shows

• Ai4 2027 Aug 2-5, 2027 · The Venetian · ~12,000
• ASD Market Week - August 2027 Aug 3-5, 2027 · LVCC · ~30,000
• DEF CON 35 Aug 5-8, 2027 · TBA (DEF CON 34 was LVCC West Hall) · attendance n/a

Each Monday-Sunday week gets one score: the pro-rated attendance of every tracked trade show in town that week. The score sets the week label. A show carries the label of the week that holds most of its days (ties go to the busier week), and on a week page every show card carries that week’s label, so a tile and its week never disagree. Method.

When to book entertainment for Black Hat USA 2027

Book entertainment: Plenty of time

Based on typical lead times for headline and booth entertainment (status as of Oct 18). In Packed or Sold-out weeks, book at the early end; private rooms and hotel blocks go fast too.

Past editions

Organizer or audit figures as published; counting methods differ between sources and years.

Sources and notes

2026: 23,000+ verified (Black Hat). Leads into DEF CON, so 'hacker summer camp' week.

• Dates: https://blackhat.com/upcoming.html
• Attendance: https://blackhat.com/html/press/2026-08-11.html (2026 figure)
• Official site: https://www.blackhat.com/

Spotted a change? Dates and venues are set by the organizer and can move. Always confirm on the official site.