Sten Gustaf Fredrik Troil Ramel (9 December 1872 – 30 October 1947) was a Swedish baron, governor, diplomat and officer.

He was the son of Hans Fredrik Ramel and Carolina Alexandrina von Troil.

Ramel started his diplomatic career first as an attaché in the foreign ministry in 1895.

As cabinet secretary Ramel handled feuds with Norway, he has been described as pro-German.

[2] As Secretary of State he worked to implement the Oslo convention.