Alexander Cummings McWhorter Pennington | |
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| Member of the U.S. House of Representatives from New Jersey's 5th district | |
| In office March 4, 1853 – March 3, 1857 | |
| Preceded by | Rodman M. Price |
| Succeeded by | Jacob R. Wortendyke |
| Member of the New Jersey General Assembly | |
| In office 1837-1838 | |
| Personal details | |
| Born | July 2, 1810 Newark, New Jersey, US |
| Died | January 25, 1867 (aged 56) New York City, US |
| Political party | Whig (first term) Opposition Party (second term) |
| Spouse | Ann Johnston Kennedy Pennington (m. February 11, 1836) |
| Profession | Politician |
Alexander Cummings McWhorter Pennington, Sr. (July 2, 1810, Newark, New Jersey – January 25, 1867, New York City) was an American Whig Party / Opposition Party politician who represented New Jersey's 5th congressional district in the United States House of Representatives from 1853 to 1857.