The deal with the 36-year-old Argentina international includes options through 2027-28.
Hoyos most recently played for boyhood club Newell’s Old Boys. He has 135 clean sheets in 345 appearances dating back to 2010.
“We’re pleased to sign Lucas and look forward to welcoming him to the club,” chief soccer officer and sporting director Chris Henderson said. “He’s a goalkeeper with a lot of experience in South America and a leader of the backline who is familiar with Tata’s (Martino, Atlanta head coach) style of play.
“Lucas will bring competition and leadership to our young goalkeeping group as we continue to strengthen our roster this offseason.”
Atlanta United will have a new starter in net in 2026 following the retirement of longtime goalkeeper Brad Guzan.
Jayden Hibbert, 21, made eight MLS starts and recorded two clean sheets for the Five Stripes in 2025.
