Michael H. Weir Jr. (born September 2, 1948) is an American politician from Maryland and a member of the Democratic Party.

Weir has received a number of awards from gun rights organizations.

Delegate Weir is currently serving in his 3rd term in the Maryland House of Delegates, representing Maryland's District 6 in Baltimore County.

For the past four years, Delegate Weir has annually voted to support classroom teachers, public schools, police and hospitals in Baltimore County.

Since 2002, funding to schools across the State has increased 82%, resulting in Maryland being ranked top in the nation for K-12 education.