De Alwis (Sinhala: ද අල්විස්, romanized: da Alvis) is a Sinhalese surname derived from the Portuguese surname Alves.

Notable people

• Albert L. De Alwis Seneviratne, Ceylonese politician
• Amali de Alwis (born 1980), British executive
• Anandatissa de Alwis (1919–1996), Sri Lankan politician
• Anuk de Alwis (born 1991), Sri Lankan cricketer
• Ashanthi De Alwis, Sri Lankan musician
• Charles Alwis Hewavitharana, Sri Lankan Sinhala independence activist and physician
• Guy de Alwis (1959–2013), Sri Lankan cricketer
• James De Alwis (1823–1878), Ceylonese politician
• Lakshman de Alwis (1940–2008), Sri Lankan athlete
• Lanka de Alwis, Sri Lankan cricketer
• Malathi de Alwis, Sri Lankan anthropologist
• Neal de Alwis (1914–?), Ceylonese politician
• Padmalal de Alwis, Sri Lankan politician
• Prasantha Lal De Alwis, Sri Lankan lawyer
• Premakeerthi de Alwis (1947–1989), Sri Lankan broadcaster
• Sacha De Alwis (born 1992), Sri Lankan cricketer
• Stanley de Alwis (1936–2019), Ceylonese cricketer
• Susantha De Alwis (died 2008), Sri Lankan diplomat
• Suwini de Alwis (born 1975), Sri Lankan cricketer
• William de Alwis (1842–1916), Ceylonese artist