Teatao Teannaki (15 June 1935 – 11 October 2016) was an I-Kiribati political figure who served as the second president of Kiribati from 1991 until 1994.

At independence on 12 July 1979, Tabai immediately nominated Teannaki as vice-president.

He served as vice president of Kiribati under the three mandates of Sir Ieremia Tabai.

Replacing Babera Kirata, suddenly dead before the general election, he was narrowly elected to replace Tabai as the President of Kiribati on behalf of the National Progressive Party of Kiribati from 8 July 1991 until 1 October 1994.

It is said that Tabai continued to exert political influence in the Kiribati government throughout Teannaki's term.