James Wilson Squier (died October 16, 1940) was an American politician and lawyer from Maryland.

Squier was educated at West Nottingham Academy and studied law under judge Frederick Stump.

He was a member of the Maryland House of Delegates, representing Cecil County from 1908 to 1910.

[3] In 1913, Squier ran for the Democratic nomination for the Maryland Senate, but lost to Byron Bouchelle.

[2] Squier died on October 16, 1940, at the age of 86, at his home near Port Deposit.