Fenway Park is a baseball park near Kenmore Square in Boston, Massachusetts. Located at 4 Yawkey Way, it has served as the home ballpark of the Boston Red Sox baseball club since it opened in 1912, and is the oldest Major League Baseball stadium currently in use.

Because of the ballpark's age and constrained location in an urban neighborhood, the park has had many renovations and additions over the years not initially envisioned, resulting in unique, quirky features, including "the Triangle", "Pesky's Pole", and most notably the famous Green Monster in left field. Fenway Park is renowned for hosting dedicated Red Sox fans, collectively called "Red Sox Nation". Every Red Sox home game since May 15, 2003, has sold out; in 2008, the park sold out its 456th consecutive Red Sox game, breaking a Major League record. Fenway Park has also been the site of many other sporting and cultural events, including professional football games for the Boston Redskins and the New England Patriots, concerts, and political campaigns.

The Red Sox moved to Fenway Park from the old Huntington Avenue Baseball Grounds. In 1911, owner John I. Taylor sold the team at the same time he developed land bordered by Brookline Avenue, Jersey Street, Van Ness Street and Lansdowne Street into a larger baseball stadium.