Kaja Tael (born 24 June 1960)[1] is an Estonian philologist, translator, and diplomat.

From 1995 until 1998, she worked as a foreign policy advisor to President of Estonia Lennart Meri.

Between 1998 and 2001, she joined the Estonian Ministry of Foreign Affairs, serving as Executive Secretary of the Estonian-Russian Intergovernmental Commission and then as Director General of the Policy Planning Department.

[2] From 2001 until 2006, she was the Estonian ambassador to the United Kingdom of Great Britain and Northern Ireland.

[2][3] On 1 January 2020, Tael became the Estonian Ambassador at Large for Climate and Energy Policy.