|Occupation:||High School Student|
|Season(s) in:||Big Brother: Rivals and Redemption 2|
|Challenges Won:||1 (1 HOH)|
|Alliances:||Team Andy Alliance|
|Loyalties:||Andy Constock, Teegyn Brecter, Thomas Gudell, Wulfe Errol|
|Times Nominated:||4 (Weeks 1, 6, 7, and 9)|
Katelin "Katie" Rehnquist was a contestant on Big Brother: Rivals and Redemption 2.
|Week 1||Week 2||Week 3||Week 4a||Week 4b||Week 5||Week 6||Week 7||Week 8||Week 9||Week 10a||Week 10b|
|Teegyn||Head of Household||Bella||Thomas||Nominated||Vetoed|
HOH History Table:
|Original Nominees||Post-Veto Nominees||Intended Target|
- Katie is currently the youngest houseguest to compete in the Big Brother: Rivals and Redemption franchise, as well as currently the wiki's youngest houseguest to compete at time of competition, being 18 years old.