{{Infobox settlement | official_name = Phak Hai | native_name = ผักไห่ | native_name_lang= th | settlement_type = District | image_skyline = File:Ayutthaya Ladchado Market 2.jpg | image_alt = | image_caption = Lad Chado Market, a local floating market | image_map = Amphoe 1408.svg | map_caption = District location in Ayutthaya province | pushpin_map = | pushpin_map_caption = | subdivision_type = Country | subdivision_name = Thailand | subdivision_type1 = Province | subdivision_name1 = Ayutthaya | subdivision_type2 = Seat | subdivision_name2 = Phak Hai | subdivision_type3 = ''Tambon'' | subdivision_name3 = 16 | subdivision_type4 = ''Muban'' | subdivision_name4 = | established_title = District established | established_date = | population_total = 44436 | population_as_of = 2000 | population_density_km2 = {{Formatnum:235.1|R}} | area_total_km2 = {{Formatnum:189.0|R}} | leader_title = | leader_name = | blank_name_sec1 = Postal code | blank_info_sec1 = 13120 | blank_name_sec2 = Geocode | blank_info_sec2 = 1408 | timezone = ICT | utc_offset = +7 | coordinates = {{coord|14|27|30|N|100|22|12|E|type:adm2nd_region:TH|display=inline,title}} | website = | footnotes = }}

'''Phak Hai''' ({{Langx|th|ผักไห่}}, {{IPA|th|pʰàk hàj|pron}}) is a district (''amphoe'') in the northwestern part of Ayutthaya province, central Thailand.

==History== Historically, the district was named ''Khwaeng'' Sena Yai, which became converted to an ''amphoe'' at the end of the 19th century. In 1917, the name of district was changed to be Phak Hai after the central ''tambon''.

The name Phak Hai comes from the Nirat ''Suphan'' by Sunthorn Phu, which refers to a village named Ban Pak Hai. The spelling has changed however now, so it can also mean a kind of plant (''Momordica charantia'') that grows in swamps.<ref name=phak>{{cite web|url=https://www.doctor.or.th/article/detail/3415|title=ผักไห่ : ผักไทยโบราณที่ลูกหลานไม่รู้จัก|trans-title=Phak Hai : traditional Thai vegetable that the descendants do not know|language=thai|date=1995-02-01|accessdate=2019-06-02|work=dortor.co.th|author= somsak }}</ref><ref>{{cite web|url=http://pukhai.com/2015/05/%E0%B8%9B%E0%B8%A3%E0%B8%B0%E0%B8%A7%E0%B8%B1%E0%B8%95%E0%B8%B4%E0%B8%84%E0%B8%A7%E0%B8%B2%E0%B8%A1%E0%B9%80%E0%B8%9B%E0%B9%87%E0%B8%99%E0%B8%A1%E0%B8%B2%E0%B8%82%E0%B8%AD%E0%B8%87%E0%B8%AD%E0%B8%B3/|archive-url=https://web.archive.org/web/20160429154737/http://pukhai.com/2015/05/%E0%B8%9B%E0%B8%A3%E0%B8%B0%E0%B8%A7%E0%B8%B1%E0%B8%95%E0%B8%B4%E0%B8%84%E0%B8%A7%E0%B8%B2%E0%B8%A1%E0%B9%80%E0%B8%9B%E0%B9%87%E0%B8%99%E0%B8%A1%E0%B8%B2%E0%B8%82%E0%B8%AD%E0%B8%87%E0%B8%AD%E0%B8%B3/|url-status=usurped|archive-date=April 29, 2016|title=ประวัติความเป็นมาของอำเภอผักไห่|work= Pukhai.com|accessdate=2019-06-02|language=thai|trans-title=Historical of Phak Hai district}}</ref>

==Geography== Neighboring districts are (from the north clockwise) Wiset Chai Chan and Pa Mok of Ang Thong province; Bang Ban, Sena, and Bang Sai of Ayutthaya Province; and Bang Pla Ma, and Mueang Suphanburi of Suphanburi province.

==Administration== The district is divided into 16 sub-districts (''tambon''), which are further subdivided into 128 villages (''muban''). {| ||1.||Phak Hai||ผักไห่|| |- ||2.||Ammarit||อมฤต|| |- ||3.||Ban Khae||บ้านแค|| |- ||4.||Lat Nam Khem||ลาดน้ำเค็ม|| |- ||5.||Talan||ตาลาน|| |- ||6.||Tha Din Daeng||ท่าดินแดง|| |- ||7.||Don Lan||ดอนลาน|| |- ||8.||Na Khu||นาคู|| |- ||9.||Kudi||กุฎี|| |- ||10.||Lam Takhian||ลำตะเคียน|| |- ||11.||Khok Chang||โคกช้าง|| |- ||12.||Chakkarat||จักราช|| |- ||13.||Nong Nam Yai||หนองน้ำใหญ่|| |- ||14.||Lat Chit||ลาดชิด|| |- ||15.||Na Khok||หน้าโคก|| |- ||16.||Ban Yai||บ้านใหญ่|| |}

==In media== Phak Hai is the setting of a Thai country song, (''luk thung''), titled ({{langx|th|สาวผักไห่}}; {{rtgs| ''sao phak hai''}}) 'Phak Hai Girl'). It has been popular since around 1970s.<ref name=phak/>

==References== {{reflist}} ==External links== * {{Official website|1=http://pukhai.com/}}

{{Amphoe Ayutthaya}}

Phak Hai

{{Ayutthaya-geo-stub}}