Ernst Konrad Otto Brasche (Russian: Эрнест Браше, transcribed Ernest Braše, 27 November 1873 – 12 November 1933) was an Estonian physician, sport sailor, and chess player who participated as part of the Imperial Russian sailing team at the 1912 Summer Olympics in Nynäshamn, Sweden.

Brasche and his team members took a bronze medal in the 10 Metre regatta.

[2] Ernst Brasche was born in Reval (now, Tallinn) to Baltic German parents Johann Heinrich Brasche, a Lutheran clergyman, and Anna Wilhelmine Hoffmann.

During the Russo-Japanese War, he was a doctor in the Russian Red Cross Society service in Harbin.

Afterwards, he worked as a private doctor in the field of ear, nose and throat diseases in Tallinn and Haapsalu.