List of former members of the United States House of Representatives (O)

This is a complete list of former members of the United States House of Representatives whose last names begin with the letter O.

Number of years/terms representative/delegate has served
The number of years the representative/delegate has served in Congress indicates the number of terms the representative/delegate has. Note the representative/delegate can also serve non-consecutive terms if the representative/delegate loses election and wins re-election to the House.
 * 2 years - 1 or 2 terms
 * 4 years - 2 or 3 terms
 * 6 years - 3 or 4 terms
 * 8 years - 4 or 5 terms
 * 10 years - 5 or 6 terms
 * 12 years - 6 or 7 terms
 * 14 years - 7 or 8 terms
 * 16 years - 8 or 9 terms
 * 18 years - 9 or 10 terms
 * 20 years - 10 or 11 terms
 * 22 years - 11 or 12 terms
 * 24 years - 12 or 13 terms
 * 26 years - 13 or 14 terms
 * 28 years - 14 or 15 terms
 * 30 years - 15 or 16 terms
 * 32 years - 16 or 17 terms
 * 34 years - 17 or 18 terms
 * 36 years - 18 or 19 terms
 * 38 years - 19 or 20 terms
 * 40 years - 20 or 21 terms
 * 42 years - 21 or 22 terms
 * 44 years - 22 or 23 terms
 * 46 years - 23 or 24 terms
 * 48 years - 24 or 25 terms
 * 50 years - 25 or 26 terms
 * 52 years - 26 or 27 terms
 * 54 years - 27 or 28 terms
 * 56 years - 28 or 29 terms
 * 58 years - 29 or 30 terms