Ace Hotel is a chain of hotels headquartered in Portland, Oregon. It operates hotels in Portland, New York, Palm Springs, London and Seattle. Ace has been called “the country’s most original” hotel by the New York Times, and a “mega-chain waiting to happen” by Wallpaper magazine.
The first Ace Hotel opened in 1999. Friends Alex Calderwood, Wade Weigel, and Doug Herrick purchased and transformed a Seattle halfway house into an affordable hotel that would appeal to the creative class. Calderwood and Weigel had previously founded Rudy's, a barbershop concept they started in Seattle that eventually expanded to more than a dozen West Coast locations, and a marketing and advertising company known as "Neverstop".
In 2011, Ace Hotel collaborated with the cosmetics brand uslu airlines to create a nail polish sold in the hotels' mini bars.
In September 2013, an Ace Hotel opened in the Shoreditch neighborhood of London, with plans to open a property in Los Angeles later in 2013, as well as a property in Panama by the name of "American Trade Hotel", also by the end of 2013.
According to Calderwood, the style and furnishing of each Ace property is designed to reflect its location, with an eye towards re-imagining properties that are “challenged.” 
- Ace Hotel Seattle is a former Salvation Army halfway house located in the Belltown neighborhood.
- Ace Hotel & Swim Club in Palm Springs, CA is a converted Howard Johnson motel, and King's Highway, the hotel's on-site diner, is a converted Denny's. There are two bars, the Amigo Room, and poolside, the Short Bus. The hotel was originally a Westward Ho prior to being a Howard Johnson. The remodel was a collaboration with L.A.-based design firm, Commune.
- Ace Hotel Portland occupies the former Clyde Hotel in downtown Portland. In its former incarnation, the hotel's lobby served as the setting for a scene from the film Drugstore Cowboy. The property is listed on the National Register of Historic Places.
- Ace Hotel New York worked with Roman and Williams  to redesign the former Hotel Breslin, a 1904 building in Midtown Manhattan. This location features a Stumptown Coffee and Chef April Bloomfield's  Michelin-starred The Breslin  restaurant.
- Ace Hotel Los Angeles opens January 15, 2014 in the historic United Artists Building. It will have 180 rooms in the rebuilt office tower and will also include the restored United Artists Theatre.
- Ace Hotel London Shoreditch is a new hotel located in the Shoreditch neighborhood.
Calderwood has stated his goal is to open a new Ace Hotel every "one to two years."
In popular culture
The 2011 episode "Blunderbuss" of the sketch comedy series Portlandia had a sketch set at the "Deuce Hotel", where the obnoxiously hip staff hand out complimentary turntables and typewriters to all guests; it was a parody specifically of the Portland Ace Hotel.
- "Portland’s Retro Fit Hotel". The New York Times. 25 March 2007.
- "Aceventure". www.acehotel.com/press. May June 1999.
- "Sunday CEO: Alex Calderwood, Ace Hotel & Swim Club". The Desert Sun. February 1, 2009. Archived from the original on 11 March 2009. Retrieved March 4, 2009.[dead link]
- McKeough, Tim (December 31, 2008). "Shopping With Alex Calderwood and Robin Standefer". The New York Times. Archived from the original on 4 March 2009. Retrieved March 4, 2009.
- Torline, Monica. "Aces high on pop culture", The Desert Sun, Palm Springs, 1 October 2009.
- "Ace's Sense of Place". Portland Tribune. May 29, 2007. Retrieved March 4, 2009.
- "Style & Substance". Metropolis. 22 July 2009.
- "The Breslin's Little Britain". Villagevoice.com. January 12, 2010.
- "Diet Someplace Else". Nymag.com. January 24, 2010.
- "Blunderbuss" review, The A.V. Club, February 18, 2011
- Portlandia: Over | Flyer Wars | Deuce Hotel, Anne Adams, Portland Monthly Culturephile blog, March 1, 2011