The Supernatural hunk uploaded the super cute selfie over the weekend with the simple caption, "Hello Instagram."
The perfect pic features Ackles casually dressed in a black t-shirt and some sexy stubble sporting a sly smile. The actor has his arm around his baby girl who is sitting pretty next to her proud papa. Justice Jay's blond locks frame her sweet face as her big blue eyes look straight into the camera.
In 2013, Ackles and his wife, actress Danneel Harris announced the arrival of their first child via Twitter, writing, "We are happy to announce the birth of our precious baby girl, Justice Jay 'JJ' Ackles. She was born happy and healthy on May 30th."
"It's been quite the adjustment," Ackles told E! News exclusively that same year when asked about balancing fatherhood and filming Supernatural. "A friend of mine says it's a slightly different gear, and I said, different gear? No, you put it in park, you get out of the car, you get in a different car, you take a left down a wrong street; that's basically where I'm at now."
He continued, "I'm lost, I'm just completely lost. Season nine started and I got back to work where I at least had some sort of understanding of what's happening around me, but the baby's doing great and for me I think it's just going to be a lot more travel."
Ackles and Harris tied the knot on May 15, 2010, in his native Dallas.