| Hayner, Bill | Youth/Young Adult Study Committee, School Committee Designee | | | |
| Harvey, Jillian | Youth/Young Adult Study Committee, Director of Diversity, Equity, & Inclusion | | | |
| Hayner, William | Veterans Council (6/30/2021) | | | |
| Horan, Richard | Utility Pole Working Group | Boards & Commissions, Town Manager | | |
| Haydock, Augusta | Trust Fund Commission, 2022 | | (781) 641-3528 | |
| Helmuth, Eric D. | Select Board, Tree Committee | Boards & Commissions, Town Manager | | |
| Helmuth, Eric D. | Select Board, 2027 | Boards & Commissions, Town Manager | (617) 475-0962 | EHelmuth@town.arlington.ma.us |
| Hurd, John V. | Select Board, 2027 | Boards & Commissions | | JHurd@town.arlington.ma.us |
| Hayner, William | School Enrollment Task Force, School Committee | Town Manager | | bill_hayner@comcast.net |
| Hughes, Kenneth | Retirement Board | Boards & Commissions, Town Manager | | |
| Helmuth, Eric | Remote Participation Study Committee, Select Board | | | |
| Hayner, William | Remote Participation Study Committee, School Committee | | | |
| Hughes, Kenneth | Post Employment Medical Benefits Committee | Boards & Commissions, Town Manager | | |
| Hampe, Amy | Poet Laureate Committee, Library Designee | | | |
| Hurd, John V. | Parking Advisory Committee, Select Board | | | |
| Hatch, Eliza | Open Space Committee, Resident | | | |
| Hoffman, Jock | Minuteman Bikeway 25th Anniversary Committee | | | |
| Hargrove, Molly | Master Plan Update Advisory Committee | Town Manager | | |
| Hartman, Lillian | Master Plan Update Advisory Committee | Town Manager | | |
| Howard, Peter | Master Plan Implementation Committee | Boards & Commissions | | |
