Sir James Matthew Barrie, 1st Baronet, OM (9 May 1860 – 19 June 1937) was a Scottish author and dramatist, best remembered today as the creator of Peter Pan. The child of a family of small-town weavers, he was educated in Scotland. He moved to London, where he developed a career as a novelist and playwright. There he met the Llewelyn Davies boys who inspired him in writing about a baby boy who has magical adventures in Kensington Gardens (included in The Little White Bird), then to write Peter Pan, or The Boy Who Wouldn't Grow Up, a "fairy play" about this ageless boy and an ordinary girl named Wendy who have adventures in the fantasy setting of Neverland. This play quickly overshadowed his previous work and although he continued to write successfully, it became his best-known work, credited with popularising the name Wendy, which was very uncommon previously. Barrie unofficially adopted the Davies boys following the deaths of their parents. Before his death, he gave the rights to the Peter Pan works to Great Ormond Street Hospital, which continues to benefit from them.

Barrie was born in Kirriemuir, Angus, to a conservative Calvinist family. His father David Barrie was a modestly successful weaver. His mother, Margaret Ogilvy, had assumed her deceased mother's household responsibilities at the age of eight. Barrie was the ninth child of ten (two of whom died before he was born), all of whom were schooled in at least the three Rs, in preparation for possible professional careers. He was a small child (he only grew to 5 ft 31⁄2 in. according to his 1934 passport), and drew attention to himself with storytelling.

When he was 6 years old, Barrie's next-older brother David (his mother's favourite) died two days before his 14th birthday in an ice-skating accident. This left his mother devastated, and Barrie tried to fill David's place in his mother's attentions, even wearing David's clothes and whistling in the manner that he did. One time Barrie entered her room, and heard her say "Is that you?" "I thought it was the dead boy she was speaking to", wrote Barrie in his biographical account of his mother, Margaret Ogilvy (1896), "and I said in a little lonely voice, 'No, it's no' him, it's just me.'" Barrie's mother found comfort in the fact that her dead son would remain a boy forever, never to grow up and leave her. Despite evidence to the contrary, it has been speculated that this trauma induced psychogenic dwarfism, and was responsible for his short stature and apparently asexual adulthood. Eventually Barrie and his mother entertained each other with stories of her brief childhood and books such as Robinson Crusoe, works by fellow Scotsman Walter Scott, and The Pilgrim's Progress.