David Gerrold (born January 24, 1944) is an American screenwriter and novelist. Somewhat to his continued annoyance, he is probably most famous for writing the script for the original ''[[Series/StarTrekTheOriginalSeries Star Trek]]'' episode ''[[Recap/StarTrekS2E15TheTroubleWithTribbles The Trouble With Tribbles]]''. He also has written scripts for programs such as ''Series/LandOfTheLost1974'', ''Series/{{Sliders}}'', ''Series/BabylonFive'', ''WesternAnimation/TheRealGhostbusters'' and ''Series/TheTwilightZone1985''.

He won the [[MediaNotes/HugoAward Hugo]] and [[MediaNotes/NebulaAward Nebula]] awards for his novel ''Literature/TheMartianChild'', which is a fictionalized account of his raising a neurodivergent son as a single gay father, and was adapted into [[Film/MartianChild a 2007 movie]] starring Creator/JohnCusack.

In scifi fandom circles, he is somewhat ''infamous'' for his [[OrphanedSeries long-unfinished]] novel series ''Literature/TheWarAgainstTheChtorr'', which depicts Earth being overwhelmed by an aggressive alien ecosystem.

!!Works by David Gerrold with pages on this Wiki:

* ''Literature/AgainDangerousVisions'' (Includes his short story "With A Finger in My I".)
* ''Literature/TheFlyingSorcerers'' (with Creator/LarryNiven)
* ''Literature/TheManWhoFoldedHimself''
* ''Literature/TheWarAgainstTheChtorr''