Lacie Heart (born August 22, 1986) is a former American pornographic actress.
Heart grew up on a ranch in Templeton, California,  and studied ballet as a child.  She danced at a Canoga Park strip club's amateur night at age 19 on a whim.  While she was there she was recruited by and subsequently met with agent Derek Hay of L.A. Direct Models in August 2005.  Her first on-camera appearance was in a scene for Fantasy Wash with Jack Venice, who had introduced her to the adult film business.  She signed with Vivid in January 2006,  and was with them for nearly a year. 
Heart was introduced to fellow performer Scott Nails at a party about a month after she had entered the business.  They became a couple soon after. Heart left Vivid after she told them that the only guy she wished to work with on camera was Nails; Vivid already had one actress who did only girl-girl, and they did not care to have Heart signed to work exclusively with one guy.  In December 2006, Lacie signed with Digital Playground.