Freshman receiver-returner Stefon Diggs was named to the second team as a special teams player.
Senior linebacker Demetrius Hartsfield was named to the second-team defense.
The announcement by the ACC came today. The team was selected by the conference's 12 head coaches. The coaches were not allowed to vote for their own players.
Vellano was limited by an ankle injury sustained in the season's ninth game. But he continued to play, finishing with 61 tackles, including 14 for losses and six sacks.
Hartsfield suffered a torn ACL and missed the last three games. But he still tied with Cole Farrand for the team high with 78 tackles.
Diggs had one of Maryland's best freshman seasons ever. He had 1,896 all-purpose yards in 11 games and caught 54 passes for 848 yards. He had two kick-return touchdowns.
The coaches' all-conference team is almost identical to the team selected by ACC media.