The girl at the end of How I Met Your Mother is The Mother, also known as Tracy McConnell.
She is the wife of Ted Mosby, the main character of the show. The series follows Ted's journey to find "the one," and after years of searching, he finally meets Tracy.
The show's final episode reveals that Tracy tragically passes away, leaving Ted heartbroken and alone. The episode ends with Ted reuniting with Robin, his longtime friend and the "other woman" in his life.
The Mother's character was intentionally shrouded in mystery throughout the series, with glimpses of her personality and backstory revealed gradually. This added to the intrigue and suspense surrounding her identity.
Tracy's death in the final episode was a controversial decision for many fans, but it ultimately served as a poignant conclusion to Ted's journey of love, loss, and acceptance.
