Maddy or Maddie is a shortened form of the feminine given names Madeleine, Madelyn, Madison, etc.
People
Maddy Crippen (born 1980), American medley swimmer
Maddy Cusack (1995–2023), English footballer
Maddy English (1925–2004), American professional baseball player
Maddy Evans (born 1991), American soccer player
Maddy Hill (born 1990), English actress
Maddie Moate (born 1988), English TV presenter and YouTube filmmaker
Maddie Poppe (born 1997), American singer-songwriter, 16th winner of American Idol (2018) Maddy Prior (born 1947), English folk singer Maddie Rooney (born 1997), American ice hockey player Maddy Rosenberg (born 1956), American artist and curator Maddy Scott (born 1991), Canadian person who has been missing since 2011 Maddy Siegrist (born 2000), American basketball player Maddy Thorson (born 1988), Canadian video game developer Maddie Ziegler (born 2002), American dancer R. Maddy, nickname of R. Madhavan (born 1970), Indian film actor
Fictional characters
Madalyn "Maddie" Bishop, main character of the 2018 show Siren
Madeline "Maddie" Kendall-Buckley, a 9-1-1 dispatcher on American television series 9-1-1 Maddie Fenton, on the Nickelodeon show Danny Phantom Maddy Ferguson, on the U.S. television series Twin Peaks Maddie Fitzpatrick, on the Disney television series The Suite Life of Zack and Cody Maddie Flour, from the Disney Channel animated series Amphibia Maddie Hayes, on the U.S. television series Moonlighting, role played by Cybill Shepherd Maddie Heath, on the UK television show Coronation Street Maddie Magellan, a lead character in the UK television show Jonathan Creek Maddy Osborne, on the Australian soap opera Home and Away Maddy Perez, a main character of the US HBO television show Euphoria Maddie Rooney, from the Disney Channel program Liv and Maddie, played by Dove Cameron Maddy Young, from the BBC medical drama Holby City Maddie, inland taipan protagonist of Back to the Outback