Henri Célestin Delmer (15 February 1907 – 2 March 1996)[1] was a French footballer who played as a midfielder.

He was part of France's squad for the 1930[2] and 1934[3] FIFA World Cups He played for Stade Olympique Paris Est,[4] FC Mulhouse,[5] Amiens,[6] Excelsior Roubaix,[7] Red Star.

[9] He was part of France's squad for the 1930 FIFA World Cup,[10] and played one match in the group stage against Chile.

[12] He was part of France's squad for the 1934 FIFA World Cup[13] but did not play in their only match in the tournament, a 3–2 defeat against Austria.

This biographical article related to association football in France, about a midfielder born in the 1900s, is a stub.