| 5/31/83 08:00 | Muskegon County (Northern part) | MI | USA | Disk | 30 minutes | We observed a large, round object "hovering" over the highway in late may of 1983. | 2/18/01 | |
| 5/28/83 21:15 | San Bernadino | CA | USA | Disk | 10 minutes | Disk shaped UFO appeared at over a concert in Southern CA. | 7/5/08 | |
| 5/24/83 01:30 | Pacoima | CA | USA | Other | 5 MIN | SOMETHING RIGHT AT MY WINDOW!!!! | 11/26/03 | |
| 5/20/83 21:30 | Valley City | ND | USA | Other | 15 minutes | An object comprised of 4 or 5 metalic orbs in a row, moving West to East, and returning every 5 minutes following a parallel path. | 5/4/04 | |
| 5/17/83 05:45 | Tallahassee | FL | USA | Unknown | 10 minutes | Faint light zips back and fourth across sky | 7/16/06 | |
| 5/15/83 19:30 | Willits | CA | USA | Diamond | 1.50 min. | Saw dark diamond shaped UFO for 1 and a half minutes at tree top level. | 4/27/07 | |
| 5/15/83 00:00 | Roslyn | NY | USA | Disk | 3 minutes | Spacecraft hovering with bluish lights from rectangular windows ( 8 ) enormous in size - quiet - peaceful | 3/10/11 | |
| 5/13/83 21:30 | Granite City | IL | USA | Disk | 15 sec | i observed this object quite a few years ago, my mother and i were in her car on the road i live on and noticed a saucer shaped object | 6/6/00 | |
| 5/13/83 17:00 | London (UK/England) | | United Kingdom | Disk | 2 mins | silver disc sighted on Waterloo Bridge, London, England in 1983 | 6/20/05 | |
| 5/10/83 23:15 | Bremerton | WA | USA | Triangle | 5 seconds | Triangular-shaped object moving in perfect silence in the night sky | 5/12/11 | |
| 5/10/83 21:30 | Jackson | MI | USA | Fireball | 5 minutes | This happened around MAY Of 1983. It was around 9:30 PM. Me my sister and two neighbor kids were out in the yard playing when one of us | 2/1/19 | |
| 5/5/83 19:45 | Riverside | TX | USA | Circle | 15-20 seconds | A red and orange ball of light above the trees. | 6/12/07 | |
| 5/3/83 22:00 | Highway (Mexico) | | Mexico | Oval | 5 mins | Huge light formation spanned across (and above) a mountain range | 3/4/03 | |
| 5/2/83 09:00 | Minneapolis | MN | USA | Disk | 5' | Un vieux témoignage | 4/8/02 | |
| 5/1/83 21:30 | Frankfurt (West Germany) | | West Germany | Sphere | 2-3 minutes | Witnessed orange ball of light in night sky, followed by sleepwalking disturbances for several months. 1983, Frankfurt, Germany, | 4/13/17 | |
| 5/1/83 21:00 | Southwest City | MO | USA | Unknown | 20 minutes | On a rural raod with my mother, had a bried tree-level, following-us CE of the 1st kind | 5/1/20 | |
| 5/1/83 21:00 | Chesterfield | VA | USA | Cylinder | 2-5 minutes | The date of this sighting is unknown, so I did best guess. This is among many many sightings I've had as a kid. This is the most memora | 5/11/05 | |
| 5/1/83 19:00 | Washington County (rural) | MS | USA | Diamond | 2 hours | Diamond shaped craft sighting followed by missing time 500 Lights On Object0: Yes | 3/19/09 | |
| 5/1/83 17:30 | North Kansas City | MO | USA | Other | 2 minutes | Something Above Us that Day | 12/12/11 | |
| 5/1/83 03:00 | Paleohora (east of)(Crete)(Greece) | | Greece | Light | Few seconds | White light, with searchlight-like beam, at 3AM on Crete. ((anonymous report)) | 4/26/18 | |