Massachusetts Senate's 1st Suffolk and Middlesex district

Massachusetts Senate's 1st Suffolk and Middlesex district in the United States is one of 40 legislative districts of the Massachusetts Senate. It covers 1.5% of Middlesex County and 20.6% of Suffolk County population in 2010. Democrat Lydia Edwards has represented the district since 2022.

Locales represented
The district includes the following localities:
 * parts of Boston
 * parts of Cambridge
 * Revere
 * Winthrop

As of 2016, the district had been "long known as the Eastie seat."

Senators

 * Michael LoPresti jr
 * Anthony Petruccelli
 * Robert Travaglini
 * Joseph Boncore (2016–2021)
 * Lydia Edwards (2022–present)