Henry Converse Atwill (1872–1936) was an American politician who served as Massachusetts Attorney General from 1915 to 1919.

From 1905 to 1910 he was an Assistant District Attorney in Essex County, Massachusetts.

When District Attorney W. Scott Peters retired, Atwill was elected to succeed him.

[1] As Essex County DA, Atwill oversaw the prosecution of Joseph James Ettor, Arturo Giovannitti, and Joseph Caruso for the murder of Anna Lopizzo during the 1912 Lawrence Textile Strike.

This article about a member of the Massachusetts State Senate is a stub.