23 May
A list of events which occurred on the 23rd of May.

James Blish is born.

Marvin Chomsky is born.

Joan Collins is born.

Hal Landon, Jr. is born.

Alex Henteloff is born.

James M. Ward is born.

John Kenton Shull is born.

Iona Morris is born.

Beverly Leech is born.

Mike Deodato, Jr. is born.

A day of rehearsal is held for .
First script draft for  is submitted.
Teleplay for  is submitted.
Revised story outline submitted for the undeveloped Original Series episode "Return To Eden" by Alvin Boretz.
H. Jon Benjamin is born.

Third day of filming on .
First script draft for  is submitted.
Patrick Barnitt is born.

Third day of filming on . The OK Corral gunfight is filmed today.
Final draft script for  is submitted.

The Thirteenth UK Story Arc continues in TV21 & Joe 90 #35 with the fourth of seven installments.

Tim Robinson is born.

JaNae Armogan is born.

Twenty-eighth day of filming on . Scenes of Kirk and McCoy's trial are filmed today.
Sixth day of second unit filming on .

 airs.

 airs. Series finale.
Fortieth day of filming on .
CIC Video releases Next Generation volume 80 and Deep Space Nine volumes 13 & 14 on VHS in the UK.

Thirty-fourth day of filming on . Corridor scenes featuring Lily Sloan are filmed today.

Final draft script of  is submitted.
 premieres in Sweden.

Harry Townes dies.
 airs. Series finale.
Eighth day of filming on .

Pocket TOS novel To Reign in Hell: The Exile of Khan Noonien Singh published.

Edward J. Lakso dies.

Ashes of James Doohan released into Earth's orbit by SpaceX's Falcon-9 rocket.

 premieres in Cambodia and Macedonia.
de:23. Mai
es:23 mayo
it:23 maggio
nl:23 mei
pt:23 de maio
ru:23 мая
sv:23 maj