Silas Sitai MBE BEM (died 31 October 1972) was a Solomon Islands civil servant.

[1] He joined the civil service as a clerk in 1939, initially working in the Resident Commissioner's office in Tulagi.

When World War II started he joined the Fiji Naval Reserve, before returning to serve in the BSIP Defence Force alongside the United States Marine Corps.

He then came back to the Solomon Islands and rejoined the civil service, becoming a clerk in Eastern District.

[2] He transferred to Central District in 1958, before becoming the Public Service Officer on the Land Trust Board in 1962.