Walter F. Timilty Jr. (born July 19, 1969) is an American politician serving as a member of the Massachusetts Senate from the Norfolk, Plymouth and Bristol district.

He is a graduate of Milton Academy, Boston College, and the Southern New England School of Law.

In addition to his time in the House, Timilty served as a Town Meeting Member in Milton, and as a member of the Milton Democratic Town Committee.

[1][2][3] Timilty's district included portions of Milton and Randolph, Massachusetts.

In 2016, Timilty ran for State Senate and defeated independent candidate Jonathan Lott in the general election with 73.9% of the vote.