Reuven Helman (Hebrew: ראובן הלמן; 1927 – July 11, 2013) was a former Maccabiah Olympian recognized as a weightlifting champion, distinguished athlete in Track and Field,[1] the Decathlon and for his career as an athletic instructor.

Helman came in second in 1957 in the International Maccabiah Games in Tel Aviv, and had also competed in 1953.

[1][3] Helman became an adherent of the Chabad Lubavitch Movement after visiting its spiritual head, Rabbi Menachem M.

[1] He attributed his strength to kosher eating, clean living and exercise.

[4] Helman fought in Israeli's 1948 war of independence and was dubbed the “human cannon” for his ability to fling grenades over 75 meters when army supplies were short.