Peter Grill and the Philosopher's Time (ピーター・グリルと賢者の時間, Pītā Guriru to Kenja no Jikan) is a Japanese fantasy manga series by Daisuke Hiyama.

Peter Grill, warrior of the Brave Swordsmen's Guild, has emerged victorious at an international fighting tournament and is crowned the strongest man in the world.

However, women from other races have heard of Peter's exploits and seek the "seed" of the strongest man to continue their respective bloodlines, with or without his consent.

Written and illustrated by Daisuke Hiyama, Peter Grill and the Philosopher's Time was serialized in Futabasha's Monthly Action magazine from August 25, 2017, to February 24, 2024.

[43] The series was animated by Wolfsbane and directed by Tatsumi, with Nora Mōri writing the scripts and Rui Ishige designing the characters.

[44][45][a] The opening theme song, "Tsuranuite Yūtsu" (つらぬいて憂鬱, "Piercing Melancholy"), was performed by Yui Ninomiya as her character Luvelia Sanctos.