Baron Horder, of Ashford in the County of Southampton was a title in the Peerage of the United Kingdom. It was created on 23 January 1933 for the leading physician Sir Thomas Horder, 1st Baronet. He had already been created a baronet, of Shaston, in 1923. The titles became extinct on the death of his son, the second Baron, on 30 June 1997.
| Escutcheon: | Per chevron Argent and Sable bezantée in chief a male griffin passant of the second. |
| Crest: | Issuant from a rock Proper a demi-male griffin Sable. |
| Motto: | Health And A Day[1] |