Ikaroa-Rāwhiti is a New Zealand parliamentary Māori electorate that was formed for the 1999 election. It covers the eastern North Island from East Cape south through Hawke's Bay and the Wairarapa to Wainuiomata and most of the Hutt Valley, but not southern Lower Hutt or Wellington City. 
 It was held by Parekura Horomia of the Labour Party from 1999 until his death in 2013. A by-election to replace him was held on 29 June 2013 and was won by Labour's Meka Whaitiri, who has held the seat since. Whaitiri left the Labour Party in early May 2023 and joined Te Pāti Māori. According to a ruling by the speaker of the House, Whaitiri continued to represent the electorate, not on behalf of a party, but as an independent. Whaitiri was defeated by Labour's Cushla Tangaere-Manuel in 2023.
 As the electorate's name suggests (ika "fish", roa "long", rāwhiti "east"), Ikaroa-Rāwhiti is a long electorate covering the eastern North Island (Te Ika-a-Māui).
 The electorate includes the following population centres (from north to south):
 In the 2013/14 redistribution, a minor boundary adjustment was undertaken. A small area, including the village of Tuai, was transferred to the Waiariki electorate.
 The electorate includes the following tribal areas:
 The electorate was formed for the 1999 election, which was won by Parekura Horomia of the Labour Party. Horomia's death on 29 April 2013 triggered a by-election, which was held on 29 June and won by Labour's Meka Whaitiri. The Māori Party had nominated tribal leader Na Rongowhakaata Raihania. and the Mana Party had selected television presenter Te Hamua Nikora as its candidate. The Green Party had selected environmentalist and human rights advocate Marama Davidson. Further candidates had been Michael Appleby for the Aotearoa Legalise Cannabis Party plus two independent candidates. Based on preliminary results, Whaitiri more than tripled her 2014 election night majority over Mana's Nikora. Also based on preliminary results, Marama Fox of the Māori Party was elected to Parliament as a list MP.
 Key
   Labour
  Independent
 Members of Parliament elected from party lists in elections where that person also unsuccessfully contested Ikaroa-Rāwhiti. Unless otherwise stated, all MPs terms began and ended at general elections.
   Māori Party
  Green
 Blue background denotes the winner of the electorate vote.
Pink background denotes a candidate elected from their party list.
 Yellow background denotes an electorate win by a list member, or other incumbent.
A Y or N denotes status of any incumbent, win or lose respectively.
 Blue background denotes the winner of the electorate vote.
Pink background denotes a candidate elected from their party list.
 Yellow background denotes an electorate win by a list member, or other incumbent.
A Y or N denotes status of any incumbent, win or lose respectively.
 Blue background denotes the winner of the electorate vote.
Pink background denotes a candidate elected from their party list.
 Yellow background denotes an electorate win by a list member, or other incumbent.
A Y or N denotes status of any incumbent, win or lose respectively.
 Blue background denotes the winner of the electorate vote.
Pink background denotes a candidate elected from their party list.
 Yellow background denotes an electorate win by a list member, or other incumbent.
A Y or N denotes status of any incumbent, win or lose respectively.
 The following table shows the final results of the by-election:
 Notes: Blue background denotes the winner of the by-election. Pink background denotes a candidate elected from their party list prior to the by-election. Yellow background denotes the winner of the by-election, who was a list MP prior to the by-election. A Y or N denotes status of any incumbent, win or lose respectively.
 
 Blue background denotes the winner of the electorate vote.
Pink background denotes a candidate elected from their party list.
 Yellow background denotes an electorate win by a list member, or other incumbent.
A Y or N denotes status of any incumbent, win or lose respectively.
 Electorate (as at 26 November 2011): 32,951
 Blue background denotes the winner of the electorate vote.
Pink background denotes a candidate elected from their party list.
 Yellow background denotes an electorate win by a list member, or other incumbent.
A Y or N denotes status of any incumbent, win or lose respectively.
 Blue background denotes the winner of the electorate vote.
Pink background denotes a candidate elected from their party list.
 Yellow background denotes an electorate win by a list member, or other incumbent.
A Y or N denotes status of any incumbent, win or lose respectively.
 Blue background denotes the winner of the electorate vote.
Pink background denotes a candidate elected from their party list.
 Yellow background denotes an electorate win by a list member, or other incumbent.
A Y or N denotes status of any incumbent, win or lose respectively.
 39°25′00″S 176°49′00″E﻿ / ﻿39.4167°S 176.8167°E﻿ / -39.4167; 176.8167