Ibbett Bay ({{coord|75|51|N|115|50|W|region:CA_type:waterbody|display=inline,title}}) is a fjord in the Canadian Arctic Archipelago, on the western side of Melville Island, Northwest Territories, Canada. It is approximately 55 km long.

• 9th planet
• 9th Politburo of the Communist Party of China
• 9th precinct
• 9th Precinct, New York City Police Department
• 9th President of the United States
• 9th Quebec Legislature
• 9th radio centre of Moscow
• 9th Reconnaissance Wing
• 9th Reserve Division (German Empire)
• 9th Royal Tank Regiment
• 9th Screen Actors Guild Awards
• 9th Seanad
• 9th Soviet Antarctic Expedition
• 9th Space Division
• 9th Street Art Exhibition
• 9th Street (PATH service)
• 9th Street station (PATH)
• 9th Street–Congress Street station
• 9th symphony
• 9th Texas Legislature
• 9th (The Queen's Royal) Lancers
• 9th Thermidor
• 9th Toronto Film Critics Association Awards
• 9th U-boat Flotilla
• 9th United States Army