The Boston Police Special Operations Unit is a specialized unit within the Boston Police Department responsible for combined duties involving traffic enforcement, crowd control, and special weapons and tactics (SWAT) services within the city.

One unique feature of the unit is that the Special Operations Unit primarily relies on the use of Harley-Davidsons in their daily patrols. The use of motorcycles allows the unit to perform routine traffic enforcement; accompany parades, crowds, and visiting dignitaries; and to quickly travel to situations wherein the unit's SWAT skills are requested. Specialized trucks and support vehicles are also used to transport equipment and officers when needed.

Some members of Boston's Special Operations Unit are currently involved in a controversy stemming from the death of a student from a new high-force pepper-pellet weapon used by Special Operations members during crowd control procedures following the Boston Red Sox's American League pennant victory in October 2004. The SOU has also been involved in anti-terror efforts and raids after the events of 9/11.

Similar municipal units:

• NYPD Highway Patrol
• Philadelphia Highway Patrol