'''Kereta kecepatan tinggi Kuala Lumpur–Singapura''' (HSR) adalah sebuah proyek kereta api yang ditangguhkan untuk menghubungkan [[Kuala Lumpur]], [[Malaysia]] ke [[Singapura]] melalui sebuah jalur [[kereta kecepatan tinggi]].<ref>{{citeweb|url=https://www.channelnewsasia.com/news/singapore/mahathir-mohamad-confirms-malaysia-pulls-out-of-kl-singapore-hsr-10284144|title=Mahathir confirms Malaysia will scrap KL-Singapore HSR project|work=Channel NewsAsia|date=28 May 2018|accessdate=14 June 2018|archive-url=https://web.archive.org/web/20180614003331/https://www.channelnewsasia.com/news/singapore/mahathir-mohamad-confirms-malaysia-pulls-out-of-kl-singapore-hsr-10284144|archive-date=14 June 2018|url-status=live|df=dmy-all}}</ref> Proyek ini diumumkan oleh [[Perdana Menteri Malaysia|Perdana Menteri]] [[Malaysia]] saat itu, [[Najib Razak]], pada September 2010. [[Perdana Menteri Singapura|Perdana Menteri]], [[Singapura]] [[Lee Hsien Loong]], secara resmi menyetujuinyasetuju pada Februari 2013 untuk melanjutkan dan proyek HSR diharapkan akan selesai pada tahun 2026. HoweverNamun, aftersetelah the defeat ofkekalahan Najib Razak indalam Malaysia'spemilihan Primeumum MinisterPerdana electionsMenteri inMalaysia pada [[Malaysianpemilihan generalumum election,Malaysia 2018|MayMei 2018]], his successorpenggantinya, [[Mahathir Mohamad]] initiallypada announcedawalnya thatmengumumkan thebahwa projectproyek wouldtersebut beakan scrappeddibatalkan.<ref>{{cite web|title=Mahathir vows deep cuts to save Malaysian economy|work=Financial Times|date=28 May 2018|url=https://www.ft.com/content/c7975d7c-6243-11e8-90c2-9563a0613e56|accessdate=14 June 2018|archive-url=https://web.archive.org/web/20180614052805/https://www.ft.com/content/c7975d7c-6243-11e8-90c2-9563a0613e56|archive-date=14 June 2018|url-status=live|df=dmy-all}}</ref> However, during a visit to Japan on 12 June 2018, Mahathir said that the project was not scrapped but merely postponed due to high costs.<ref name="postponed" /> On 5 September 2018, it was announced that the HSR operations will start in January 2031.<ref name="auto">{{Cite news|url=https://www.channelnewsasia.com/news/asia/high-speed-rail-postponed-malaysia-singapore-agreement-10686032|title=KL-Singapore High-Speed Rail formally postponed; service targeted to start by Jan 2031|date=5 September 2018|work=Channel NewsAsia|archive-url=https://web.archive.org/web/20180905102318/https://www.channelnewsasia.com/news/asia/high-speed-rail-postponed-malaysia-singapore-agreement-10686032|archive-date=5 September 2018|url-status=live|df=dmy-all}}</ref>
