Lightning (Jennifer Pierce) is a fictional superhero appearing in American comic books published by DC Comics. Not pinpointed with direct reference, Lightning first appears in the miniseries Kingdom Come in 1996, written by Mark Waid and illustrated by Alex Ross. The character is given official introduction in Justice Society of America vol. 3 #12 (March 2008), written by Geoff Johns and illustrated by Dale Eaglesham in the Modern Age of Comic Books.

Jennifer Pierce is a metahuman, the second child of superhero Black Lightning, and the younger sister of Anissa Pierce, the heroine known as Thunder. Forbidden to use their abilities until completing their educations, Pierce was put in contact and later becomes a member of the superhero team the Justice Society of America. Her father orchestrates this so Jennifer would not endure the hardships her sister did while transitioning into crimefighting. She possesses abilities similar to her father's of electrical generation and manipulation as well as flight. Thus far in her narrative, Pierce has not gained full control of her abilities.

Along with comic books, Lightning has made appearances in various television shows and the character was portrayed by China Anne McClain in the live-action Arrowverse series Black Lightning, and with Laura Kariuki taking over the role in the remaining episodes of the final season. McClain returned in the final episode of the series.

Lightning first appears in the DC Comics miniseries Kingdom Come by Mark Waid and Alex Ross, a tale of a dystopian possible future. She is among the lawless generation of superheroes who arise after the retirement of Superman. Though not identified within the story, supplemental material in the collected edition of the series refers to her as "Black Lightning's metahuman daughter." During the course of the story, Lightning joins forces with Batman's covert team of heroes as they attempt to reclaim Earth.

A version of Lightning is later introduced into the mainstream DC Comics universe by Geoff Johns and Dale Eaglesham, debuting in Justice Society of America (vol. 3) #12 (March 2008).

Jennifer Pierce is the younger daughter of the superhero Black Lightning (Jefferson Pierce) and his ex-wife Lynn Stewart. She inherits a metagene from her father which causes her to manifest superpowers when she becomes a teenager. However, like her father in his youth, she lacks the ability to properly control her electrical powers. This results in the shorting out of any electronic device that she touches. This side effect has left her feeling alienated and freakish among her peers, who have access to cell phones, televisions, the internet, and other conveniences of the modern world.

Jefferson initially forbids his daughters from following in his footsteps as a costumed hero until after they complete their education. After seeing the rough road that his eldest daughter Anissa follows when she disobeys this order as the heroine Thunder, Jefferson decides that Jennifer will need guidance. He contacts the Justice Society of America, who are in the middle of a recruitment drive.

Upon joining the Justice Society, Jennifer immediately forms a bond with fellow teen heroines Stargirl and Cyclone. She also attracts the romantic interests of Jakeem Thunder, another younger member of the team. Jennifer is at first unsure of a superhero codename, believing that her sister will "kill her" if she adopts the name Lightning as a counterpoint to Anissa's own. Nonetheless, this is the name she eventually settles on when she first goes into battle with the JSA.