|Affiliation||Thórin & Company|
|Date of birth||TA 2900|
|Date of death||November 23, TA 2941|
|Family||House of Dúrin|
|Lord of the Rings film trilogy|
Born in TA 2900, Tíli settled in the Blue Mountains with many Dwarves that survived the terrible sacking at Erebor twenty years ago. She first met Fíli in the beginning of TA 2930 and eventually got married. Nine months after their marriage, she gave birth to two twin daughters. While Fíli and his brother Kíli joined their uncle's company to reclaim Erebor from the dragon Smaug, Tíli looked after her daughters. After hearing the news of Smaug's death, Tíli, along with her daughters and large group of Dwarven Refugees began to resettle in the Lonely Mountain.
Arriving at the Mountain, Tíli and her daughters reunited with Fíli, who welcomed them to their new home. However, when they heard news that the people of Esgaroth were settling in the ruined city of Dale, Tíli started to grow a bit suspicious over Thórin, who had succumbed to the sickness like his grandfather had. After leaving her daughters under the care of her younger brother, she volunteered to defend the mountain and became a member of the Company. She also developed a personal friendship with Bilbo Baggins of the Shire. When Bilbo explained about Thórin's promise, Tíli was one of those that disagreed with Thórin's plan to defend the mountain since there was plenty of gold to be given to the people that lost their home. When an angry Thórin was planning to kill Bilbo by throwing him off the wall, Tíli was shocked and she along with several members of the company defended Bilbo and managed to help him escape.