Maryland House of Delegates District 34A is one of the 67 districts that compose the Maryland House of Delegates.

Along with subdistrict 34B, it makes up the 34th district of the Maryland Senate.

District 34A includes part of Harford County, and is represented by two delegates.

[1] As of the 2020 United States census, the district had a population of 86,491, of whom 66,273 (76.6%) were of voting age.

The racial makeup of the district was 45,425 (52.5%) White, 27,586 (31.9%) African American, 385 (0.4%) Native American, 2,438 (2.8%) Asian, 50 (0.1%) Pacific Islander, 3,028 (3.5%) from some other race, and 7,504 (8.7%) from two or more races.