Neil Martin Andrew Walker (born September 10, 1985) is an American former professional baseball second baseman. He played in Major League Baseball (MLB) for the Pittsburgh Pirates (2009–2015), New York Mets (2016–17), Milwaukee Brewers (2017), New York Yankees (2018), Miami Marlins (2019), and Philadelphia Phillies (2020). Walker was drafted by his hometown Pittsburgh Pirates in the first round of the 2004 MLB draft, and made his MLB debut with them in 2009. He won a Silver Slugger Award in 2014.