The ninth federal electoral district of Mexico City (Distrito electoral federal 09 de la Ciudad de México; previously "of the Federal District") is one of the 300 electoral districts into which Mexico is divided for elections to the federal Chamber of Deputies and one of the 22 currently operational districts in Mexico City. ^[1]

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 this district also count towards the calculation of proportional representation ("plurinominal") deputies elected from the fourth region. ^{[2] [3]}

Under the 2022 districting plan, which will be used for the 2024, 2027 and 2030 federal elections, ^[4] the ninth district covers the borough (alcaldía) of Tláhuac. ^{[5] [1]}

Under the 2005 districting scheme, the ninth district covered the western portion of the borough (delegación) of Venustiano Carranza. ^[6]

Between 1996 and 2005, the district covered the same basic area, with a slight reduction in its size. ^[7]

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

Ninth federal electoral district of Mexico City

Deputy	Party	Legislature	Term	Election
Antonio Norzagaray Ángulo [ es]		Constituent Congress of Querétaro	1916–1917
Mauricio Gómez		27th Congress	1917–1918
Ezequiel Ríos Landeros [a]	PLC	28th Congress	1918–1920
Vacant		29th Congress	1920–1922
Gustavo Arce Correa [ es]	PNC	30th Congress	1922–1924
Justo A. Santa Anna		31st Congress	1924–1926
Juan Lozano		32nd Congress	1926–1928
Rafael Sánchez Lira	PLM	33rd Congress	1928–1930
José Torres H.		34th Congress	1930–1932
Cosme Mier Riva-Palacio		35th Congress	1932–1934
Manuel Mier		36th Congress	1934–1937
Jesús Yurén Aguilar [ es]		37th Congress	1937–1940
Vacant		38th Congress	1940–1943	1940
Roberto Aguilera Carbajal		39th Congress	1943–1946	1943
Manuel Origel Salazar		40th Congress	1946–1949	1946
Uriel Herrera Estúa		41st Congress	1949–1952	1949
Javier de la Riva Rodríguez		42nd Congress	1952–1955	1952
Manuel Sierra Macedo		43rd Congress	1955–1958	1955
Arturo López Portillo		44th Congress	1958–1961	1958
Mercedes Fernández Austri		45th Congress	1961–1964	1961
Emilio Gandarilla Avilés		46th Congress	1964–1967	1964
Javier Blanco Sánchez		47th Congress	1967–1970	1967
Aurora Fernández Fernández		48th Congress	1970–1973	1970
Daniel Mejía Colín		49th Congress	1973–1976	1973
Venustiano Reyes López [ es]		50th Congress	1976–1979	1976
Gonzalo Castellot Madrazo		51st Congress	1979–1982	1979
Arturo Contreras Cuevas		52nd Congress	1982–1985	1982
José Armando Lazcano Montoya		53rd Congress	1985–1988	1985
Magdaleno Gutiérrez Herrera		54th Congress	1988–1991	1988
Sandalio Alfonso Sáinz de la Maza Martínez		55th Congress	1991–1994	1991
Irma Eugenia Cedillo y Amador		56th Congress	1994–1997	1994
Victorio Montalvo Rojas [9]		57th Congress	1997–2000	1997
Daniel Ramírez del Valle		58th Congress	2000–2003	2000
María Guadalupe Morales Rubio [10]		59th Congress	2003–2006	2003
Victorio Montalvo Rojas [11]		60th Congress	2006–2009	2006
Esthela Damián Peralta [12]		61st Congress	2009–2012	2009
Israel Moreno Rivera [13]		62nd Congress	2012–2015	2012
Evelyn Parra Álvarez [ es]		63rd Congress	2015–2018	2015
Adriana Espinosa de los Monteros García		64th Congress	2018–2021	2018
Guadalupe Chavira de la Rosa [ es]		65th Congress	2021–2024	2021
Rigoberto Salgado Vázquez [14]		66th Congress	2024–2027	2024