A daughter was a female offspring to her parents. The male equivalent was a son. (TV: An Unearthly Child et al.)
After her death, the First Doctor said that he would always remember Katarina as one of the daughters of the Gods. (TV: The Daleks' Master Plan)
The Tenth Doctor unwillingly had a daughter named Jenny when his DNA was extracted during the Human-Hath War on the planet Messaline by a progenation machine. After initially appearing to have been killed by a gunshot wound, she survived and went on to explore the universe like her "father". Despite being the only other known member of the Doctor's species, she did not regenerate. (TV: The Doctor's Daughter [+]Stephen Greenhorn, Doctor Who series 4 (BBC One, 2008).)
Some of the Doctor's companions had daughters, such as Amy Pond and Rory Williams, who were the parents of Melody Pond; (TV: A Good Man Goes to War [+]Steven Moffat, Doctor Who series 6 (BBC One, 2011).) and Donna Noble, who was mother to Rose Noble. (PROSE: We Are Family [+]Paul Lang, Doctor Who The Official Annual 2024 (Penguin Group, 2023).) Peri Brown had at least one daughter, whom she called Janey. (AUDIO: The Baby Awakes [+]Error: Code 2 - no data stored in variables, cache or SMW.) Rose Tyler, who had become pregnant with the Meta-Crisis Doctor's child, gave birth to a daughter who was named Mia. (COMIC: Empire of the Wolf [+]Jody Houser, Doctor Who (2020) (Titan Publishing Group, 2021-2022).)
Alice Carter was the daughter of Jack Harkness. Due to the latter's immortality, Alice appeared older than her father by 2009. Her son, Steven, was led to believe Jack was his uncle rather than his grandfather. (TV: Children of Earth: Day One [+]Russell T Davies, Torchwood series 3 (BBC One, 2009).)
According to the work of one Time Lord author, the First Doctor, faulty Type 40 TT capsule which he used to make his escape, took with him Gallifrey's moon, the Hand of Omega, validium and the President's daughter during his escape from Gallifrey. The author believed that the daughter mentioned was Susan Foreman but could not draw a definitive conclusion. (PROSE: A Brief History of Time Lords [+]Steve Tribe, BBC Books (2017).)
The Master had a daughter. (TV: The Witch's Familiar [+]Steven Moffat, Doctor Who series 9 (BBC One, 2015).)