Senator Maclay may refer to:

• Charles Maclay (1822–1890), California State Senate
• Samuel Maclay (1741–1811), U.S. Senator from Pennsylvania from 1803 to 1809
• William Maclay (Pennsylvania senator) (1737–1804), U.S. Senator from Pennsylvania from 1789 to 1791

This disambiguation page lists articles associated with the title Senator Maclay.
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