Wojciech Olejniczak

{{Short description|Polish politician (born 1974)}}

{{Use dmy dates|date=June 2021}}

{{Infobox officeholder

| name = Wojciech Michał Olejniczak

| image = Olejniczak, Wojciech Micha-9530.jpg

| imagesize =

| smallimage =

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| office = Member of the European Parliament

| term_start = 14 July 2009

| term_end = 1 July 2014

| constituency = Warsaw

| office1 = Member of the Sejm

| term_start1 = 19 October 2001

| term_end1 = 10 June 2009

| constituency1 = Łódź

| order2 = Minister of Agriculture and Rural Development

| primeminister2 = Leszek Miller

| term_start2 = 2 July 2003

| term_end2 = 31 May 2005

| predecessor2 = Adam Tański

| successor2 = Jerzy Pilarczyk

| order3 = Leader of Democratic Left Alliance

| term_start3 = 29 May 2005

| term_end3 = 31 May 2008

| predecessor3 = Józef Oleksy

| successor3 = Grzegorz Napieralski

| birth_date = {{Birth date and age|df=yes|1974|04|10}}

| birth_place = Łowicz, Poland

| death_date =

| death_place =

| party = Democratic Left Alliance

| spouse = Anna Olejniczak

| profession = Economist

| religion =

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}}

Wojciech Michał Olejniczak ({{IPA|pl|ˈvɔjt͡ɕɛx ɔlɛjˈɲit͡ʂak|pron|Pl-Wojciech Olejniczak.ogg}}; born 10 April 1974) is a Polish leftist politician and member of the European Parliament.

He was the chairman of the Democratic Left Alliance (SLD) from 29 May 2005, to 31 May 2008 (the first chairman of that party that was not a member of Polish United Workers' Party) and the vice-speaker of Sejm since 26 October 2005. From 2 July 2003, to 31 May 2005, Olejniczak was the Minister of Agriculture and Rural Development.

He was elected to the Sejm on 25 September 2005 getting 31,471 votes in the 11th Sieradz district, running on the SLD list. He was also a member of Sejm 2001–2005. He was reelected on 21 October 2007 getting 51,865 votes in the 9th Łódź district.

On 7 June 2009 he was elected as a Member of the European Parliament for the Warsaw constituency, gaining 72,854 votes.