Jeffrey "Jeff" Weldon was a houseguest on Big Brother 17.
Jeff played a very quiet game overall, with his former Amazing Race partner, Jackie Ibarra. However, in Week 3, he soon became a target to Austin Matelson when he began having a flirtatious relationship with Liz Nolan and figuring out Liz could be a twin and her other twin Julia Nolan was playing as Liz. This resulted in Austin convincing his alliance members that Jeff was a danger to their game. Vanessa Rousso and Austin then staged a fight with Jeff to make him public enemy number one so that they had reason to send him out the door.
After being thrown onto the block by Vanessa, he was evicted by a vote of 7-4. He placed 15th.
•Jeff was never picked to play in a veto competition.
•Jeff, along with Jackie Ibarra, is one of the first two contestants to transfer from The Amazing Race to Big Brother.
•Jeff's, Jackie's and Becky's votes were nullified in the week two eviction due to the power of the Last Laugh, won by Da'Vonne.
•Jeff has a twin but was not part of the Twin Twist.
•Jeff was the only one of the houseguests that arrived at the house after the first group to be evicted pre-jury.
•Jeff, along with Da’Vonne, Shelli, and Clay, always voted along with the majority of the house.
•Jeff is the only contestant to not have an interview with Jeff Schroeder during the finale. This was due to him starting a new job the next day as stated on his Twitter.
•Jeff was in the house for all three takeover twists, including him and Jackie being the two mystery houseguests. After he left, the twists stopped.