The L II River (Māori: Ararira or Te awa o Āraiara) is a small spring-fed river in Canterbury, New Zealand. It rises near Lincoln and flows through very flat farmland, mostly fed by land drainage ditches before emptying into Lake Ellesmere / Te Waihora just east of the mouth of the Selwyn River / Waikirikiri.

• List of rivers of New Zealand

"Place name detail: L II River". New Zealand Gazetteer. New Zealand Geographic Board. Retrieved 12 July 2009.

43°42′32.76″S 172°26′45.96″E / 43.7091000°S 172.4461000°E / -43.7091000; 172.4461000