Arvid Wallgren (born 1889, died 1973) was a Swedish pediatrician.
Wallgren graduated as a physician in 1914 and earned his doctoral degree in 1918.
In 1921 he became a docent (reader) in practical medicine at Uppsala University and he was director of Gothenburg Children's Hospital from 1922 to 1942.
From 1943 to 1951 he was additionally director of the Children's Clinic at Norrtull Hospital in Stockholm.
From 1951 to 1956 he was director of the new Children's Clinic of Karolinska University Hospital.