'The Terriers' became the second team of the Premier League era to be relegated before the end of March after a 2-0 defeat by Crystal Palace.
Huddersfield Town became the second team of the Premier League era to be relegated before the end of March (Derby suffered a similar fate in 2008) after a 2-0 defeat by Crystal Palace away meant they slipped 19 points from safety with six games remaining.
Wins for 17th-placed Burnley and Southampton in 16th sealed Huddersfield's fate, as they matched Derby County's record, set in 2008, for the earliest relegation from the Premier League after 32 games.
Huddersfield were doing a fine job of frustrating Palace in the Selhurst Park sunshine, with the hosts rarely threatening until the latter stages.
Huddersfield's resistance was broken after Wilfried Zaha was fouled in the penalty area in the 76th minute, with Luka Milivojevic converting from the spot to put Palace in front.
Patrick van Aanholt's late goal sealed the win, as Huddersfield slumped to their 24th defeat of the season.
As the players left the pitch, news filtered through that Burnley's 2-0 win over Wolverhampton Wanderers and Southampton's 1-0 victory at Brighton & Hove Albion had confirmed Huddersfield's relegation