The ninth federal electoral district of Chiapas (Distrito electoral federal 09 de Chiapas) is one of the 300 electoral districts into which Mexico is divided for elections to the federal Chamber of Deputies and one of 13 such districts in the state of Chiapas.

It elects one deputy to the lower house of Congress for each three-year legislative period by means of the first-past-the-post system. Votes cast in the district also count towards the calculation of proportional representation ("plurinominal") deputies elected from the third region.

The ninth district was established as part of the 1977 electoral reforms. Under the 1975 districting plan, Chiapas had only six congressional districts; under the 1977 reforms, the number increased to nine. The newly created ninth district elected its first deputy, to the 51st Congress, in the 1979 mid-term election.

Under the 2022 districting plan, which is to be used for the 2024, 2027 and 2030 federal elections, Chiapas's ninth district comprises 168 electoral precincts (secciones electorales) in the municipality of Tuxtla Gutiérrez. The district's head town (cabecera distrital), where results from individual polling stations are gathered together and collated, is the state capital, Tuxtla Gutiérrez.

2017–2022

Between 2017 and 2022, the 9th district covered 201 precincts (secciones electorales) in Tuxtla Gutiérrez.

2005–2017

In 2005–2017, the district covered the north-eastern section of the municipality of Tuxtla Gutiérrez, approximating to the eastern half of the city together with a portion of its rural hinterland. The head town was the city of Tuxtla Gutiérrez.

1996–2005

Between 1996 and 2005, the district covered the whole of the municipality of Tuxtla Gutiérrez, with the city serving as the head town.

1978–1996

The districting scheme in force from 1978 to 1996 was the result of the 1977 electoral reforms, which increased the number of single-member seats in the Chamber of Deputies from 196 to 300. Under that plan, Chiapas's seat allocation rose from six to nine. The new ninth district had its head town at Ocosingo and it covered 18 municipalities.

National parties
Current
	PAN
	PRI
	PT
	PVEM
	MC
	Morena
Defunct or local only
	PLM
	PNR
	PRM
	PP
	PPS
	PARM
	PFCRN
	Convergencia
	PANAL
	PSD
	PES
	PRD

Ninth federal electoral district of Chiapas

Election	Deputy	Party	Term	Legislature
1979	César Augusto Santiago Ramírez		1979–1982	51st Congress
1982	Eloy Morales Espinosa [es]		1982–1985	52nd Congress
1985	Sergio Valls Hernández		1985–1988	53rd Congress
1988	Arely Madrid Tovilla		1988–1991	54th Congress
1991	Octavio Elías Albores Cruz		1991–1994	55th Congress
1994	Lázaro Hernández Vázquez		1994–1997	56th Congress
1997	Carlos Morales Vázquez		1997–2000	57th Congress
2000	Enoch Araujo Sánchez		2000–2003	58th Congress
2003	Francisco Rojas Toledo		2003–2006	59th Congress
2006	Carlos Morales Vázquez		2006–2009	60th Congress
2009	Ariel Gómez León		2009–2012	61st Congress
2012	María Pariente Gavito		2012–2015	62nd Congress
2015	Emilio Enrique Salazar Farías		2015–2018	63rd Congress
2018	Leticia Arlett Aguilar Molina		2018–2021	64th Congress
2021	Adriana Bustamante Castellanos		2021–2024	65th Congress
2024	Guillermo Santiago Rodríguez [es]		2024–2027	66th Congress

16°45′N 93°07′W / 16.750°N 93.117°W / 16.750; -93.117