|Born|| 17 June 1997
Ottomar Ladva (born 17 June 1997 in Haapsalu) is an Estonian chess player who was awarded the title of International Master in 2014. He won the Estonian Chess Championship in 2013 and 2015.
Ottomar Ladva won the Estonian Junior Chess Championships (U18) in 2010, 2012, 2013 and 2014. Since 2006 he has participated in the European Junior Chess Championships and in European Union's Junior Chess Championships in different age groups.
In the Estonian Chess Championship Ladva has won gold (2013) and silver (2014) medals. He became the youngest Estonian Chess Championship winner at age 15, when he beat Lembit Oll's (1982) record.
In June 2015 Ladva won a round-robin tournament in Riga finalised to get a Grandmaster norm.
Ottomar Ladva represented Estonia in Chess Olympiads: