Fish upon the Sky (Thai: ปลาบนฟ้า; RTGS: Pla Bon Fa, also known as "Fish from the Sky, Fish upon the Sky") is a 2021 Thai boys' love television series starring Phuwin Tangsakyuen, Naravit Lertratkosum (Pond), Trai Nimtawat (Neo) and Thanawin Teeraphosukarn (Louis). The series is based on the novel of the same name created and written by JittiRain, who is also behind the hit novel-turned-series Theory of Love and 2gether: The series (with its respective sequels Still 2gether and 2gether: The Movie)

Directed by Sakon Wongsinwiset (Golf) and produced by GMMTV, the series is one of sixteen television series of GMMTV's offering for 2021 during their "GMMTV 2021: The New Decade Begins" event that took place on December 3, 2020. The series premiered on GMM 25 and LINE TV on April 9, 2021, airing on Fridays at 20:30 ICT and 22:30 ICT, respectively. It replaced the time slot of A Tale of Thousand Stars. The series concluded on June 25, 2021, and was replaced by the rerun of 2gether: The series and its sequel Still 2gether during the same time slot on the network. The series had an rerun from September 25, 2021, to October 22, 2021, every Friday to Sunday at 8:30 pm on GMM25, replacing the rerun of its predecessor A Tale of Thousand Stars'. The rerun was replaced by the newly premiered series Bad Buddy Series on its Friday slot, and the rerun of I'm Tee, Me Too on its Saturday and Sunday slots.