| Edward Holbrook | |
| Office: | Delegate to the U.S. House of Representatives from the Idaho Territory's at-large district |
| Term Start: | March 4, 1865 |
| Term End: | March 3, 1869 |
| Predecessor: | William H. Wallace |
| Successor: | Jacob K. Shafer |
| Birth Name: | Edward Dexter Holbrook |
| Birth Date: | 6 May 1836 |
| Birth Place: | Elyria, Ohio, U.S. |
| Death Place: | Idaho City, Idaho Territory, U.S. |
| Party: | Democratic |
| Education: | Oberlin College (LLB) |
Edward Dexter Holbrook (May 6, 1836 – June 18, 1870) was an American lawyer and politician who served as a congressional delegate for the Idaho Territory from 1865 to 1869.
Born in Elyria, Ohio, Holbrook attended public schools and earned a Bachelor of Laws from Oberlin College.
He was admitted to the bar in 1859 and practiced law in Elyria, Ohio; Weaverville, California; and Placerville, Idaho.
Holbrook was elected as a Democrat to the 39th and 40th Congresses; serving from (March 4, 1865 - March 3, 1869). He was censured by the United States House of Representatives on February 4, 1869, for use of unparliamentary language and did not stand as a candidate for re-election.
Holbrook was shot by Charles H. Douglas in Idaho City, Idaho Territory on June 17, 1870, and died from his wounds the next day. He was interred in the Masonic Burial Ground in that city. Holbrook, Idaho, is named in his honor.