6 March 1963 - Louisiana, USA -   An object was tracked by radar. An unidentified object was tracked by radar. Explanation: Meteor.

8 May 1963 - Pacific -   An object was tracked by radar. An unidentified object was tracked by radar only by military witnesses. Explanation: Aircraft.

16 May 1963 Around 2000 - Muchea Tracking Sta, Western Australia, Australia -   An object was tracked by radar and sighted visually. Multiple independent witnesses. One object was observed by one experienced male witness for two minutes (Cooper, G).

31 May 1963 - Atlantic -   An object was tracked by radar. An unidentified object was tracked by radar on the ocean. Explanation: Malfunct.

31 July 1963 - Philadelphia, Pennsylvania, USA -   Objects were tracked by radar and sighted visually. Three objects were observed by numerous witnesses.

1 August 1963 After 1500 - Hatfield Apt, UK -   Radar photos

5 August 1963 - Melville Afs, Newfoundland, Canada -   An object was tracked by radar. An unidentified object was tracked by radar at an airfield. Explanation: Balloon.

20 November 1963 18:00 - Girdle Ness, UK -   Collier Thrift incident.

21 November 1963 - North Sea -   Radar-visual confirmation of flashing red light passing near Scottish vessel.

6 December 1963 - France -   An object was tracked by radar. An unidentified object was tracked by radar. Explanation: Debris.

21 December 1963 - Pacific -   An object was tracked by radar. An unidentified object was tracked by radar only by military witnesses. Explanation: Aircraft.