Arthur Loomis Sanborn (November 17, 1850 – October 18, 1920) was an American lawyer and judge. He was United States district judge for the United States District Court for the Western District of Wisconsin, appointed by President Theodore Roosevelt, he served from 1905 until his death in 1920.

Arthur Loomis Sanborn
Wisconsin Western District Court
Born 1850 in Brasner Falls, NY
Died 1920
FJC ID: 2092
- Gender
- Male
- Race
- White
Prior employment
- Private practice1880–1905
- Walworth County, WisconsinRegister of deeds · 1875–1879
Appointments
1905–1920 · Appointed by Theodore Roosevelt (Republican)Term ended: Death
Education
LL.B. · 1880