Lane Pryce is a fictional character in the television series Mad Men, portrayed by Jared Harris.

A British newcomer to the United States as of 1963, he initially acts as financial officer at Sterling Cooper but eventually leaves along with a handful of his co-workers to form new agency Sterling Cooper Draper Pryce.

For his performance, Harris was nominated for the Primetime Emmy Award for Outstanding Supporting Actor in a Drama Series in 2012.

Born in London on 10 May 1916, Lane was raised by middle-class traveling salesman Robert Pryce (W. Morgan Sheppard) in a strict and regimented home. Lane served in the British Army as a supply assistant in Rosyth and, although he never saw combat, was later thanked by a British veteran of World War II who said his resupply effort saved lives and reminded that "England expects every man to do his duty." After his military career, Lane attended accounting school and married a woman named Rebecca (Embeth Davidtz), with whom he had a son named Nigel. Some time later, he was hired by advertising agency Putnam Powell and Lowe, and was eventually promoted to an executive position responsible for mergers and takeovers.

Lane is shown to enjoy the newfound freedom that came with living in America, free from the rigidity of the social class structures of England. We see glimpses of how much he enjoys his new life in the USA; while his wife longs to return to England, lamenting NYC is nothing like London, he says — with understated delight — “yes, I’ve been here 10 months and no one’s ever asked me where I went to school” (a question still asked in Britain to place one’s social class to this day). He also struggles with the expectations placed upon him by the leadership of PPL to be subservient (and eventually breaks free from them when he realises that, no matter how hard he works or how much he achieves for them, he will never be considered equal to his upper-class superiors and be viewed as dispensable. He sometimes appears stiff and reserved. He does enjoy a drink but not as much as Don, who is known to drink during work hours. He is not particularly keen on football but was seen in a bar with fellow expats cheering England's performance in the 1966 World Cup Final. He was able to make contacts to set up a potential account with Jaguar.

PPL sends Lane to recent acquisition Sterling Cooper and tasks him with trimming costs. He begins by firing many employees, including long-time employee and head of accounts Burt Peterson (Michael Gaston). He names Pete Campbell (Vincent Kartheiser) and Ken Cosgrove (Aaron Staton) as Burt's joint successors. Lane angers Creative Director Don Draper (Jon Hamm) and becomes isolated from the company when he expresses PPL's lack of interest in a potentially lucrative account with Madison Square Garden. Initially unaware of PPL's plans, he later learns that he was instructed to cut overheads so that the Sterling Cooper could be sold for a profit. Lane's superiors at PPL tell him that after the sale he is to be transferred to India. The plan is soon aborted after his would-be replacement's injury in a freak accident. Don, Roger Sterling (John Slattery) and Bertram Cooper (Robert Morse) convince him to join them in starting a new agency and make him a named partner in exchange for him "firing" the three of them in order to void their contracts' non-compete clauses that would otherwise prohibit their continued work in advertising.

It becomes clear that Lane has a knack for managing company revenues and controlling costs, a talent sorely needed in the agency that the other partners lack. Lane and office manager Joan Harris (Christina Hendricks) are credited with keeping the company running and managing the day-to-day operations.

In Season 4, Lane's marriage falls apart when Rebecca, who genuinely loves him, finds the strains of homesickness and culture shock too much to bear and returns with their son to London indefinitely. Lane and Don meet at work and then get drunk and go for a night out on the town, which includes seeing Gamera. Lane makes monster noises and slurred Japanese remarks to a woman in the audience, which Don considers hilarious. Lane then sleeps with a prostitute supplied by Don. Lane reimburses Don for the money he spent on the prostitute and thanks him for the "welcome distraction". When Lane's family is supposed to come to New York to see him, he is instead visited by his elderly father, who intends to bring Lane home to England to sort out his affairs. Around the same time, Lane begins a relationship with a young African-American Playboy Bunny named Toni (Naturi Naughton) and later introduces her to his father. His father beats Lane with his cane and orders him to return to London to reunite with his family. Lane takes a short leave-of-absence from the agency and later returns to New York with his family, who by now are more accepting of being overseas. Although he seems to have got his home life in order, Lane still has signs of a wandering eye, particularly when he finds a lost wallet. Lane does not touch any of the man's cash or credit cards but notices he has an attractive wife and keeps the wallet photo for himself prior to contacting the owner.