Otto Bremer (October 22, 1867 – February 18, 1951) was a German American banker and philanthropist. He founded Bremer Bank and the Otto Bremer Foundation, which grants funds for use in the communities where the banks operate.
Bremer was born on October 22, 1867 in Seesen, Germany, son of a banker father. He immigrated to the United States, arriving in November 1886 with his brother Adolf. He worked as a stock clerk for a St. Paul, Minnesota wholesale hardware company before he took a position as a bookkeeper at the National German American Bank in 1887. During the next decades, he was promoted to higher positions, and became a major stockholder in the bank. In 1921, he became Chairman of the new American National Bank, and continued as Chair for 20 years.
Adolf and Otto Bremer owned 25 percent of Schmidt's Brewery stock by 1901.
Following the death of Jacob Schmidt in 1911, Schmidt's son-in-law and Bremer's brother Adolf assumed control of the Schmidt brewery. Both Bremer brothers were active in politics, having lobbied against the Minnesota County Option Law in the 1890s, a law which would have allowed counties to institute alcohol prohibition. Following Adolf's death in 1939, Otto served as President of Schmidt's Brewery.
During the Great Depression, from 1929 thru the 1930s, Bremer invested money in many small town banks in the area, often showing up with a satchel of cash to save the local bank from failing. By the mid 1930s, he held stock in 55 banks in the area. He had also risked the full capital value of the bank, and had to be rescued by his brother Adolf, who pledged the shares in Schmidt Brewing Company held by him and his wife (Marie Schmidt Bremer, the daughter of brewery founder Jacob Schmidt). With his brother Adolph, Bremer ran the Jacob Schmidt Brewing Company.
In 1934, Edward Bremer, a banker and nephew of Otto, was kidnapped by the Karpis-Barker gang in broad daylight, as he was dropping off his daughter at the Summit School in St. Paul. This kidnapping, together with that of brewing heir William Hamm, Jr., brought an end to the O'Connor agreement, whereby St. Paul Police Chief John O'Connor allowed such gangsters to use St. Paul as a safe haven, provided they committed no crimes within the city. The Bremer family paid a ransom of $200,000; the Hamm family $1,000,000, and both victims were released unharmed, after about a week.