Senator Frelinghuysen may refer to:

• Frederick Theodore Frelinghuysen (1817–1885), U.S. Senator from New Jersey from 1871 to 1877
• Frederick Frelinghuysen (general) (1753–1804), U.S. Senator from New Jersey from 1793 to 1796
• Joseph S. Frelinghuysen Sr. (1869–1948), U.S. Senator from New Jersey from 1917 to 1923
• Theodore Frelinghuysen (1787–1862), U.S. Senator from New Jersey from 1829 to 1835

• Frelinghuysen (disambiguation)

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