Solomon Loeb (June 29, 1828 – December 12, 1903) was a German-born American banker and businessman. He was a merchant in textiles and later a banker with Kuhn, Loeb & Co. His father, a devout Jew, had been a small corn- and wine-dealer in Worms, which belonged to the Grand Duchy of Hesse and by Rhine. S. Loeb emigrated to the United States in 1849. He settled in Cincinnati with textiles merchants Kuhn, Netter & Co. He moved to New York City in 1865 and with his partner Abraham Kuhn started the banking house of Kuhn, Loeb and Co. His second born son James Loeb joined the bank in 1888 (and left in 1901). Salomon Loeb gradually retired from running the business, but left Kuhn, Loeb & Co. only in 1899. He then started to move into the real estate business. In addition, he was also a generous philanthropist.