"She was always there, especially in the dark times. Never judging. By my side. Only loyal. #rip Linka," he wrote.
Linka was frequently featured on Stamos' account, giving him kisses and hanging out by the pool.
In honor of Linka's life and her love for her Stamos, check out some of their sweetest Instagram moments.
Nothing's better than giving some puppy love poolside.
Which of course includes kisses.
Aaaaand more kisses.
Look at that adorable relationship. So many kisses.
Linka was a beautiful dog.
"Hardest part about leaving town."
Our hearts are warmed and there are tears in our eyes looking at these pictures. We're sorry for your loss, John Stamos. Linka will surely be missed.