Boston Children's Museum is a children's museum in Boston, Massachusetts, dedicated to the education of children. Located on Children's Wharf along the Fort Point Channel, Boston Children's Museum is the second oldest children's museum in the United States. It contains many activities meant to both amuse and educate young children.

In 1979 Boston Children’s Museum moved into half of an empty wool warehouse on the Fort Point Channel in order to gain more space and become more accessible to people in Boston. (From 1993 through 1999, the other half of the building was occupied by The Computer Museum.) The following year, Boston’s Japanese sister city Kyoto donated a Japanese silk merchant’s house to the museum. The house, known as Kyo-no-Machiya, is still one of the landmark exhibits at Boston Children’s Museum.

In 1986 Kenneth Brecher became the director of the museum. During his term, Kids Bridge, a groundbreaking exhibit on cultural diversity and racism, opened at the museum. The exhibit later moved to the Smithsonian Institution before embarking on a 3-year tour around the United States.

Lou Casagrande served as the museum’s president and CEO from 1994 to 2009.The museum opened several important exhibits during Casagrande’s term including Five Friends from Japan, access/Ability, and Boston Black: A City Connects. In 2004, The Children’s Museum of Boston officially became Boston Children’s Museum.

In April 2006, the museum broke ground on a $47-million expansion and renovation project designed by Cambridge Seven Associates and closed for four months at the beginning of 2007 to complete the project. The project added a 23,000-square-foot (2,100 m2), glass-walled enclosure to the front of the museum, a new theater, new exhibits, and a newly landscaped park. The museum also focused on making its renovation “green” and is the first green museum in Boston. It reopened on April 14, 2007. In early 2008 Boston Children's Museum received LEED Gold certification from the U.S. Green Building Council.

Carole Charnow is the Museum's president and chief executive officer. Boston Children’s Museum has an extensive collection of objects from around the world. Most of the objects were donated to the museum. The museum currently has more than 50,000 objects, but most are kept in storage away from visitor areas. Visitors can see some of the objects in the Native American Study Storage area and the Japanese Study Storage area on the third floor of the museum and in window displays throughout the museum. The museum also lends objects to schools through its Educational Kits Program.