Yes, almost every public library in theTulsa City County Library System (with the exception of the Librarium) has at least one meeting room that is available for reservation by groups and organizations. Certain rules and policies apply in order to reserve a room. These can found in the Meeting Rooms link on the library's About page.
Each library takes care of their own meeting room bookings and schedules. If you'd like to reserve a room, please contact your local branch. Check out the Locations page for a list of phone numbers for the individual locations.