Flash knocks out Giganta. Source: https://readcomiconline.org/comic/justice-league-2016.html

The Flash as the God of Death is holding an unconcious Iris West. Source: https://www.comicastle.org/comic/justice-league

After the alien parasite Volthoom is killed while posessing Jessica Cruz' body, Jessica Cruz herself is unconcious until a Green Lantern ring chooses her to be a Green Lantern. Source: https://readcomiconline.org/comic/justice-league-2011.html

Aquamans Brother Orm uses lightning to knock out the Trinity and takes them captive. Source: https://www.comicastle.org/comic/justice-league

Tom Strong puts his pregnant daughter Tesla Strong to sleep until as her baby has its fathers fire-based-powers putting her life at risk. Source: https://readcomiconline.org/comic/tom-strong-and-the-planet-of-peril.html

Impulse knocks out Earth 3 Stephanie Brown, this universes "Batwoman". Source: https://readcomiconline.org/comic/young-justice-2019.html

Wonder Woman is under water unconcious. Source: https://readcomiconline.org/comic/trinity-2016.html

After breaking out of the control of an alien life-form, Jessica Cruz and her partner faint. Source: https://readcomiconline.org/comic/trinity-2016.html

Multibe Justice League members, including Jessica Cruz, have been knocked out. Source: https://readcomiconline.org/comic/trinity-2016.html

Poison Ivy puts the Trinity, Wonder Woman, Batman and Superman, into Monguls dream using Monguls Black Mercy. Source: https://readcomiconline.org/comic/trinity-2016.html

On this cover, we see Darkseid and Cyborg battle on a pile of metal. Jessica Cruz, Starfire and Azreal are seen lying on the pile unconcious. Source: https://readcomiconline.org/comic/justice-league-odyssey.html

Saturn Girl is knocked out. Source: https://www.youtube.com/watch?v=rS5DcgIpcPk

A compilation of the three scenes in which Jessica Cruz is loosing conciousness (one via faint, the others via physical K.O.) Sources: https://www.youtube.com/watch?v=JF92NbJBt3A https://www.youtube.com/watch?v=WZkx9b6UAZ4 https://www.youtube.com/watch?v=XDo4-NetvaQ

Miss Martian is knocked out by a blast and carried by Batman. Source: https://www.youtube.com/watch?v=zivrTtDYnys

Killer Frost collapses from exhaustion. Source: https://readcomiconline.org/comic/justice-league-vs-suicide-squad.html

Wonder Woman is seen standing in a pod, bound by her own lasso and (seemingly) unconcious. Note: It's not clear whether she is unconcious but she is not seen moving or responding to Harley when she talks to her in a later seen. Plus, her eyes are closed. So I think its very likely. Source: https://readcomiconline.org...

Echantress gets knocked out and is carried by Killer Croc. Source: https://readcomiconline.org/comic/justice-league-vs-suicide-squad.html

Following a crash-landing of their ship, the passengers, including the female villain Erika Manson aka "Marionette", are knocked out for a short time. Source: https://readcomiconline.org/comic/doomsday-clock.html

Dr. Manhatten knocks out multible heroes. Source: https://readcomiconline.org/comic/doomsday-clock.html

Singe knocks out Princess Daphne during a kidnapping attempt.