Date of birth
The Owls academy product has made big strides at Hillsborough, having regularly impressed at Under-18 level and in the Development Squad.
Dawson spent time on loan with Plymouth in 2013/14 and played 17 games on loan for Alfreton in 2014/15.
His progress at Hillsborough has seen Dawson earn international recognition with England at Under-18 and Under-19 level.
Dawson enjoyed a short term loan spell with League 2 side Wycombe Wanderers in August 2016.
He made two appearances for the Adams Park club, making his senior league bow in the process.
Dawson returned to Hillsborough and made his Owls debut, coming on from the bench, in October 2016 in a 2-1 defeat to Brighton.
He made four appearances in total for Wednesday in 2016/17 and kept his first clean sheet in the Owls' 1-0 win over QPR at Hillsborough in the same month.