Life force
Life force or lifeforce may refer to:

Spirit (vital essence), in folk belief, the vital principle or animating force within all living things
Vitality, ability to live or exist
Vitalism, the belief in the existence of vital energy
Energy (esotericism), a concept in spirituality and alternative medicine
Prana, the Sanskrit word for "life force" or "vital principle"
Qi, or chi, an active principle forming part of any living thing (translated as "natural energy", "life force", or "energy flow")
Élan vital (roughly translated as "vital impetus" or "vital force"), a philosophical term coined by Henri Bergson in 1907
Vijñāna (translated as "consciousness," "life force", "mind" or "discernment")

Art and entertainment
Life Force (album), a 1967 album by American saxophonist Eric Kloss
Lifeforce (film), a 1985 science fiction-horror film
Life Force (video game), an alternate version of the 1986 video game Salamander
A Life Force, a 1988 graphic novel by Will Eisner
Life Force (sculpture), a 1992 sculpture at Columbia University, New York City
Life Force, a 1992 novel by Fay Weldon
Lifeforce Records, a 1995 record label
Life Force (TV series), a 2000 British science fiction television series
LifeForce, a fictional group of traveling doctors in Africa, within the 2004 Hong Kong television series The Last Breakthrough
Life Force: How New Breakthroughs in Precision Medicine Can Transform the Quality of Your Life & Those You Love. Simon & Schuster. ISBN 9781982121709, a book co-authored by Tony Robbins, Peter Diamandis and Robert Hariri (2022).