Henry Albert Baker (November 27, 1848 – April 24, 1934) was an American orthodontist who was known to introduce orthodontics to the use of intermaxilary elastics.

His ancestors were Captain John Lowell, an Indian Fighter and Hannah Dustin.

Lawrence followed his father's footsteps where he became an Orthodontic Professor at Harvard Dental School and Warren died in his early manhood years.

Baker's discovery of the intermaxillary elastics was itself a source of contention between Edward Angle and Calvin Case.

Baker was recognized by American Society of Orthodontists in 1923 where he was awarded a bronze bas relief of himself.