Misamis Oriental's 1st congressional district

Misamis Oriental's 1st congressional district is one of the two congressional districts of the Philippines in the province of Misamis Oriental. It has been represented in the House of Representatives since 1987. The district encompasses the eastern half of the province consisting of the city of Gingoog and the municipalities of Balingasag, Balingoan,  Binuangan, Kinoguitan, Lagonglong, Magsaysay, Medina, Salay, Sugbongcogon and Talisayan. It is currently represented in the 18th Congress by Christian Unabia of the Lakas–CMD.

Representation history
{| class=wikitable ! rowspan="2" | # ! rowspan="2" colspan=2 | Member ! colspan=2 | Term of office ! rowspan="2" | Congress ! rowspan="2" | Party ! rowspan="2" | Electoral history ! rowspan="2" | Constituent LGUs !Start!!End
 * colspan="9" style="text-align:center;" |
 * colspan="9" style="text-align:center;" |

Misamis Oriental's 1st district for the House of Representatives of the Philippines

 * colspan="9" style="text-align:center;" | District created February 2, 1987 from Misamis Oriental's at-large district.
 * style="text-align:center;" | 1
 * style="color:inherit;background:;" |
 * Isacio A. Pelaez
 * June 30, 1987
 * June 30, 1992
 * style="text-align:center;" | 8th
 * PDP–Laban
 * Elected in 1987.
 * rowspan="13" style="text-align:center;" | 1987–present Balingasag, Balingoan,  Binuangan, Gingoog, Kinoguitan, Lagonglong, Magsaysay, Medina, Salay, Sugbongcogon, Talisayan
 * rowspan="2" style="text-align:center;" | 2
 * rowspan="2" style="color:inherit;background:;" |
 * rowspan="2" | Homobono T. Cezar
 * rowspan="2" | June 30, 1992
 * rowspan="2" | June 30, 1998
 * style="text-align:center;" | 9th
 * rowspan="2" | Lakas–CMD
 * Elected in 1992.
 * style="text-align:center;" | 10th
 * Re-elected in 1995.
 * rowspan="2" style="text-align:center;" | 3
 * rowspan="2" style="color:inherit;background:;" |
 * rowspan="2" | Oscar Moreno
 * rowspan="2" | June 30, 1998
 * rowspan="2" | June 30, 2004
 * style="text-align:center;" | 11th
 * rowspan="2" | Lakas–CMD
 * Elected in 1998.
 * style="text-align:center;" | 12th
 * Re-elected in 2001.
 * rowspan="2" style="text-align:center;" | 4
 * style="background-color:#ffa500|
 * rowspan="2" | Danilo Lagbas
 * rowspan="2" | June 30, 2004
 * rowspan="2" | June 8, 2008
 * style="text-align:center;" | 13th
 * KNP
 * Elected in 2004.
 * style="color:inherit;background:;" |
 * rowspan="2" style="text-align:center;" | 14th
 * Lakas–CMD
 * Re-elected in 2007. Died in office.
 * style="text-align:center;" | —
 * vacant
 * June 8, 2008
 * June 30, 2010
 * No special election held to fill vacancy.
 * rowspan="3" style="text-align:center;" | 5
 * rowspan="2" style="color:inherit;background:;" |
 * rowspan="3" | Peter Unabia
 * rowspan="3" | June 30, 2010
 * rowspan="3" | June 30, 2019
 * style="text-align:center;" | 15th
 * rowspan="2" | Liberal
 * Elected in 2010.
 * style="text-align:center;" | 16th
 * Re-elected in 2013.
 * style="color:inherit;background:;" |
 * style="text-align:center;" | 17th
 * PDP–Laban
 * Re-elected in 2016.
 * rowspan="2" style="text-align:center;" | 6
 * rowspan="2" style="color:inherit;background:;" |
 * rowspan="2" | Christian Unabia
 * rowspan="2" | June 30, 2019
 * rowspan="2" | Incumbent
 * style="text-align:center;" | 18th
 * rowspan="2" | Lakas–CMD
 * Elected in 2019.
 * style="text-align:center;" | 19th
 * Re-elected in 2022.
 * }
 * style="text-align:center;" | 17th
 * PDP–Laban
 * Re-elected in 2016.
 * rowspan="2" style="text-align:center;" | 6
 * rowspan="2" style="color:inherit;background:;" |
 * rowspan="2" | Christian Unabia
 * rowspan="2" | June 30, 2019
 * rowspan="2" | Incumbent
 * style="text-align:center;" | 18th
 * rowspan="2" | Lakas–CMD
 * Elected in 2019.
 * style="text-align:center;" | 19th
 * Re-elected in 2022.
 * }
 * Re-elected in 2022.
 * }