16 February] 1884 in Tuhalaane, Kreis Fellin[1] – 1 October 1942 in Nyrobsky camp, Perm Oblast, Russian SFSR) was an Estonian lawyer, diplomat and politician.

Piip played a key role in internationalising the independence aspirations of Estonia during the Paris Peace Conference following World War I.

In 1917–1919, Piip was a member of the Estonian Foreign Mission in Saint Petersburg and in London, he participated in the Paris Peace Conference.

In 1919 he was Deputy to the Minister of Foreign Affairs, 1919–1920 Member of the Estonian delegation in the Tartu peace negotiations between Estonia and the Russian SFSR.

Ants Piip, in 1934 in Riga, emphasised the importance of regional co-operation in preserving Baltic independence:[5] The law of history is the following: if the nations inhabiting the shores of the Baltic Sea are not able to create between themselves a stronger organisation, they are doomed inevitably to submit to a stronger European power of the respective period.