Ancestors descendant or olive tree
Olli is primarily a Finnish diminutive of Olavi (the Finnish form of Olaf) meaning 'ancestor's descendant.' It is also frequently used as a short form of Oliver, which is derived from the Latin word for the olive tree. While rare as a standalone name in the US, it is a common nickname and given name in Northern Europe.
Less common today
Olli isn't in the latest US Top 1000. It last peaked at #7,130 in 2025.
US births per 5-year period, 1990βpresent (SSA data).
Finnish professional ice hockey defenseman
Former NHL All-Star center
Governor of the Bank of Finland and former EU Commissioner
Finnish pianist, conductor, and composer