Massachusetts v. Laird, 400 U.S. 886 (1970), was a case dealing with the conscription aspect of the Vietnam War that the Supreme Court declined to hear by a 6–3 vote.

It passed a law stating that no resident of Massachusetts "shall be required to serve" in the military abroad if the armed hostility has not been declared a war by Congress.

The attorney general of Massachusetts asked the Supreme Court to hear its case to test the legality of the Vietnam War.

The Supreme Court declined to hear the case due to a lack of jurisdiction.

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