Grafton Dulany Cushing (August 4, 1864 – May 31, 1939) was an American teacher, lawyer, and politician who served as the 45th lieutenant governor of Massachusetts from 1915 to 1916.

Cushing was born on August 4, 1864 to a prominent New England family that had produced several generations of Massachusetts politicians.

As summarized by Roosevelt, Cushing believed that "our aim must be the supremacy of justice, a more satisfactory distribution of wealth - so far as this is attainable - with a view to a more real equality of opportunity, and in sum a higher social system.

[13] However, Cushing served under a Democratic governor, David Walsh, disrupting the usual course of events.

[14]) Ahead of the 1915 election, Cushing was faced with a choice: running for re-election as lieutenant governor, or competing with Samuel W. McCall for the Republican gubernatorial nomination.

When Theodore Roosevelt returned to the GOP following the defeat of the Bull Moose Party, Cushing supported his unsuccessful campaign for the 1916 Republican presidential nomination.

[19] In 1917, Cushing launched a primary challenge to unseat now-Governor McCall, but lost handily.

[21] During World War I, he headed a "semi-official commission of nine American business men" invited to the United Kingdom to inspect British military facilities.

[3] During his years at Groton, Cushing cohabited with William Amory Gardner, the school's co-founder.

"[25] In 1911, the New York Times reported on Cushing's attempt to build a stone wall separating his family's Newport beach house from that of Henry Clews.