Barnsley will play in Sky Bet League One next season, after defeat at the John Smith's Stadium confirmed our relegation.
First half goals from Jordan Rhodes and Harry Toffolo condemned Barnsley to defeat in West Yorkshire tonight and also confirmed the Reds' fall into the third tier.
Barnsley made the worst possible start to proceedings in Kirklees, when inside the opening five minutes they fell behind to a Town set-play.
It was a Daniel Sinani corner kick from the right that took a slight nick off Mads Andersen and former Reds Academy product Rhodes was on-hand from a couple of yards out to nod in his customary goal against Barnsley.
The officials briefly discussed the possibility of there being an offside decision in there before eventually confirming that the goal stood.
Other than a brief five-minute spell after half-an-hour where the Reds enjoyed possession around the Terriers' box, won a couple of their own corner kicks that didn't beat the first man and then saw Amine Bassi test the home 'keeper from just inside the box, the Reds rarely threatened a response.
And before the interval, Town doubled their lead.
Just a few moments prior to the second goal, the warning had been there when full-back Toffolo ghosted in at the far post only to be denied by Reds' stopper Jack Walton. But fast forward to added time at the end of the opening 45, and this time the same man found the net.
A deep cross from Sinani found Toffolo, completely unmarked to tuck home a Town second and leave Poya Asbaghi's side with a mountain to climb.
HALF-TIME: Huddersfield 2-0 Barnsley
Whilst the wait for a goal would continue until the 97th minute, there was at least a bit of spirit shown in midfield with both Romal Palmer and first, Matty Wolfe booked for a pair of strong challenges.
The hosts barely broke sweat in the second half, choosing to protect their lead, soaking up Reds pressure that wasn't amounting to much. All of Cauley Woodrow, Domingos Quina and Palmer fired high or wide from in and around the box.
On 70 minutes, Asbaghi made a triple change when he withdrew Woodrow, Quina and Wolfe and handed a debut to midfielder Isaac Christie-Davies; Callum Styles and Aaron Leya Iseka also took to the field.
Little changed however, as the game continued to be played in the Town half of the pitch, but without any serious action in the Terriers' penalty area.
But with pretty much the last kick of the game, Styles grabbed us a consolation goal when he found the top corner deep into injury time, with a precise effort on his weaker right foot from just inside the box.
And so, with three games still remaining of the 2021/22 Sky Bet Championship campaign, the Reds are relegated.
FULL-TIME: Huddersfield 2-1 Barnsley
Walton, Brittain, Andersen, Kitching, Vita, Wolfe (Christie-Davies), Palmer, Bassi, Quina (Styles), Morris, Woodrow (Leya Iseka).
Unused: Jinadu, Moon, Adeboyejo, Hondermarck.