PLEASE NOTE: The below information is largely out of date as of 2023 and needs to be updated:

Hamad International Airport (HIA) offers passengers a number of different lounges. The Departure Lounges at HIA include :

Qatar Airways Al Safwa Lounge - QR and OW First Class Passengers only
Qatar Airways Al Mourjan Lounge - QR and OW First and Business Class Passengers only
HIA First Class Lounge
HIA Business Class Lounge
Oryx Lounge
Al Maha lounge

Additionally, there is an arrivals lounge for those exiting the airport (either very long connection or if Doha is their final destination)

For information on which lounge to use, when travelling with QR, at other airports, please see here.


Which Departure Lounge can I use?

Qatar Airways Al Safwa Lounge - The Lounge access is only for Qatar Airways and Oneworld First Class passengers and is located on Level 3 of the airport. Arriving on a longhaul Qatar First class qualifies for lounge access even if connecting flight is not in F. Reports on the Lounge, can be found here(external link) and here. Photographs of the lounge, can be found here (external). Wiki for Al Safwa is here.
The absolute minimum requirement for access is a boarding card for a flight departing in F or a boarding card for an incoming longhaul F flight. Op-ups and guests are not admitted.

Qatar Airways Al Mourjan Lounge - The Lounge access is only for Qatar Airways and Oneworld First and Business Class passengers and is located on Level 3 of the airport. Information and photographs can be found here - here. A thread has recently been started specific to Al Mourjan - http://www.flyertalk.com/forum/qatar...ss-lounge.html. Existing posts in this thread about Al Mourjan will be moved there as time permits.
The absolute minimum requirement for access is a boarding card for a flight departing in J or a boarding card for an incoming longhaul J flight.

HIA First Class Lounge - The First Class Lounge is located on Concourse A, Level 2 at the airport and offers facilities which include complimentary high-speed Wi-Fi, shower facilities, conference rooms, smoking rooms, family rooms, a business centre and a nursery. First or Business class ticketed passengers as well as QR Privilege Club Platinum and Oneworld alliance Emerald members may access this facility.
The absolute minimum requirement for access is a boarding card showing OWE status for your departing flight.

HIA Business Class Lounge - This lounge, that caters for First or Business class ticketed passengers as well as QR Privilege Club, Platinum Gold and Silver members and oneworld alliance Emerald and Sapphire members, is located on Concourse A, Level 2 at the airport, and offers facilities which include complimentary high-speed Wi-Fi, shower facilities, conference rooms, smoking rooms, family rooms, a business centre and a nursery.
The absolute minimum requirement for access is a boarding card showing OWS status for your departing flight.

Oryx Lounge - May be used only by eligible customers when travelling on: British Airways, Cathay Pacific, Royal Jordanian, SriLankan Airlines. Economy passengers will be able to gain access to the lounge for a fee of QAR 200 (USD 55).

Al Maha Lounge - Available to priority pass members. Located opposite the entrance to the Oryx Lounge.

Arrivals Lounge - There are essentially 2 - the first one is prior to immigration and has some snacks, drinks, and a seating area, as well as a dedicated immigration booth. The second (and main) one is just outside customs to the left, near the W.H. Smith store. This one has snacks, drinks, a menu to order from, showers, etc. Both arrivals lounges are for QR J passengers only, oneworld status alone will not get you into the lounge.

Opening Times
QR lounges are open 24 hours/day and serve no alcoholic beverages during Ramadan (27 May-25 June 2017 and 16 May-14 June 2018).

Luggage facilites
There are luggage boxes for hand luggage in Al Safwa, Al Mourjan, First Class and Business Class lounges.

Transit Options
Alternatives for long transits:

• Free tour of Doha: if your transit time is between 5 and 12 hours
• Qatar-now-offers-free-96-hour-visa
• QR-organized transit accommodation (inclusive of entry visas, airport transfers, and meals): if your transit time is between 8 and 24 hours. You may qualify for free or fixed rate access (also see this thread)
• The Airport Hotel, inside international area of the airport