| Tessie Eria Lambourne | |
| Office1: | Member of the Maneaba ni Maungatabu (Parliament) |
| Term Label1: | In role |
| Term Start1: | April 2020 |
| Predecessor1: | Natan Teewe |
| Office2: | Kiribati's Ambassador to Taiwan |
| Term Label2: | In role |
| Term Start2: | June 2018 |
| Term End2: | September 2019 |
| Predecessor2: | Teekoa Iuta |
| Successor2: | Embassy closed |
| Office3: | Secretary to the Cabinet |
| Term Label3: | In role |
| Term Start3: | August 2016 |
| Term End3: | June 2018 |
| Predecessor3: | Teea Tiira |
| Successor3: | Naomi Biribo |
| Office4: | Chair of BKM |
| Term Label4: | In role |
| Term Start4: | 22 May 2020 |
| Term End4: | August 2020 |
| Predecessor4: | Party created |
| Successor4: | Party dissolved |
| Office5: | Leader of KKP |
| Term Label5: | In role |
| Term Start5: | August 2020 |
| Predecessor5: | Party created |
| Birth Name: | Teretia (Tessie) Eria |
| Birth Date: | 14 July 1971 |
| Birth Place: | Onotoa, Gilbert and Ellice Islands |
| Spouse: | David Lambourne |
| Children: | 5 |
| Education: | |
| Occupation: |
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Tessie Eria Lambourne (born 14 July 1971) is an I-Kiribati civil servant, diplomat and politician. She has been a member of the Maneaba ni Maungatabu (Parliament) since April 2020. She was formerly Kiribati's Ambassador to Taiwan from June 2018 to September 2019 and Secretary to the Cabinet, the highest position in Kiribati's civil service, from August 2016 until June 2018.[1] [2] [3]
Lambourne was educated at the University of Auckland in New Zealand, where she graduated with a Bachelor of Arts (Political Studies) in 1994; she subsequently received a master's degree in International Law and Politics from the University of Canterbury in 2007. She worked in the civil service from 1991, serving in a number of prominent positions, including Private Secretary to President Teburoro Tito, Secretary for Foreign Affairs and Immigration, Secretary for Internal Affairs, and Secretary for Commerce, Industry and Cooperatives. She was appointed Secretary to the Cabinet by President Taneti Maamau in August 2016.[4] She served in this role until she became the country's second ambassador to Taiwan in June 2018, but her tenure was ended by the breakdown of diplomatic relations between Kiribati and Taiwan on 20 September 2019.[5]
She was elected to the Maneaba ni Maungatabu at the 2020 Kiribati parliamentary election in April 2020, winning 1 of the 2 seats for the island of Abemama "decisively" with a first-round majority.[6] [7] Lambourne was initially the chair of the newly formed Boutokaan Kiribati Moa party (BKM).[8] After the 2020 presidential election the BKM dissolved and Lambourne became the first leader of the new Kamanoan Kiribati party (KKP), and Leader of the Opposition. She was re-elected at the 2024 parliamentary election.[9]
She is married to David Lambourne, an Australian living in Kiribati, who was sworn in as a puisne judge of the High Court of Kiribati in 2018.
There was an attempt to have her husband deported in August 2022. It has been alleged that the efforts are politically motivated. Three Court of Appeal judges who ruled that the attempted deportation was unconstitutional were later suspended, a matter which is yet to be fully resolved. The United Nations Special Rapporteur on the Independence of Judges and Lawyers, Margaret Satterthwaite, is concerned that the country lacks a working court system.[10]