Viliami Tungī Mailefihi
| Prince Viliami Tungī Mailefihi | |
|---|---|
Prince Tungi in 1930 | |
| Prince consort of Tonga | |
| Tenure | 5 April 1918 – 20 July 1941 |
| Prime Minister of Tonga | |
| In office | 30 June 1923 – 20 July 1941 |
| Monarch | Sālote Tupou III |
| Predecessor | Tevita Tuʻivakano |
| Successor | Solomone Ula Ata |
| Born | 1 November 1888 Tonga |
| Died | 20 July 1941 (aged 52) Tonga |
| Burial | Malaʻekula Royal Tombs |
| Spouse | |
| Issue | Tāufaʻāhau Tupou IV Prince Uiliami Tuku‘aho Prince Sione Fatafehi Tu'ipelehake |
| House | Tuʻi Haʻatakalaua |
| Father | Siaosi Tukuʻaho |
| Mother | Mele Siuʻilikutapu |
Viliami Tungī Mailefihi CBE (1 November 1888 – 20 July 1941) was a Tongan high chieftain and Prince of Tonga as the husband of Queen Sālote Tupou III. He served as Prime Minister of Tonga from 1923 until his death in 1941.