Mark Stuart Grew (born 15 February 1958) is an English former football player and coach who played as a goalkeeper.

His career started in 1976 with West Bromwich Albion, where he spent seven seasons as a back-up keeper before moving on to Leicester City. After just a year with the "Foxes" he moved on to Ipswich Town. In 1986, he signed for Port Vale, where he became the first-choice goalkeeper. He spent six years at Vale Park, making almost 200 the Football League appearances, twice winning the club's Player of the Year award and playing in the 1989 Third Division play-off victory. He transferred to Cardiff City in 1992, and won the Third Division title with the club in 1992–93, and also picked up two Welsh Cup winners medals. His final club was Hednesford Town, whom he signed for in 1994, and left in 1995. Over the years he also enjoyed short loan spells with Wigan Athletic, Oldham Athletic, Fulham, and Blackburn Rovers.

He remained in the game after retirement as a player, spending eight years as a coach at Port Vale before his sacking in 2002. He quickly returned to his coaching position at the club though, and remains a key member of the backroom staff. He has had three separate spells as caretaker manager at the club.

He was a shot-stopping goalkeeper, who mostly remained on his line and relied on his defenders to deal with crosses.^[13]

"A fine keeper who also brought professionalism and experience from his time at Ipswich and West Bromwich Albion. I'm not sure who gave him the title, but he quickly became John Rudge's voice of reason in the dressing room. Never short of something to say, he changed the whole culture of the club."

— Robbie Earle writing in 2012.^[14]

Grew was appointed the Port Vale youth team coach in December 1994 and stayed with the club for the next eight years. He was appointed assistant manager under Brian Horton in 1999,^[15] until he was sacked in December 2002 by the club's administrators.^[16] In March 2003 he was appointed as assistant manager at Stafford Rangers, until he returned to Port Vale in a coaching capacity for the youth team, after the club was taken over by Valiant 2001.^[17] Following a capitulation to Leyton Orient at Brisbane Road on 20 October 2007, Grew gave a memorable post-match interview, saying that the team was "gutless... spineless... the worst bunch of players I have seen at Vale Park in 17 years".^[18] On 8 October 2008, Grew rejected the opportunity to become assistant to recently appointed Port Vale manager Dean Glover.^[19]

In December 2010, he was made joint caretaker manager at Vale, along with Geoff Horsfield, following the departure of Micky Adams.^[20] Vale were hammered 5–0 by Rotherham United in his first game in charge,^[21] but rallied to beat Burton Albion 2–1,^[22] before Jim Gannon was appointed manager.^[23] During Adams' reign Grew had doubled up as a first-team coach, but when Gannon arrived at the club Grew chose to focus solely on his role as youth team coach.^[24] Following Gannon's swift departure in March 2011, Grew was elevated to the position of caretaker manager for the third time in twelve years.^[25] Assisted by Horsfield, Marc Richards told the press that "it's absolutely brilliant that Grewy and Geoff are in charge again".^[26] After his first match back in charge ended in a 1–1 draw, Grew stated that if offered the job first time he would "seriously consider it".^[27] Defeat to bottom club Stockport County all but ended the club's promotion campaign, as well as Grew's hopes of a permanent appointment. He slammed both his players and the directors, claiming that "I was never in the picture to become the next manager".^[28]

Upon Adams' return as manager he reshuffled the club's coaching set-up, and in July 2011 Grew was made assistant manager.^[29] In July 2014 his role changed to that of goalkeeping coach and scouting co-ordinator.^[30] He left the club in May 2015 as part of new manager's Rob Page's reshuffle of his backroom staff, and decided to take time out of football to undergo a back operation.^[6] He left the club following his testimonial match to honour his 25 years of service to the club.^[31]

Grew's daughter, Melissa (born 1992), is a model.^[32]