No, U.S. Bank and Union Bank are entirely separate, unrelated financial institutions operated by different corporate parent entities. U.S. Bank is the primary banking subsidiary of U.S. Bancorp, a major American financial services holding company based in Minneapolis. Conversely, "Union Bank" historically referred to Union Bank (historically tied to MUFG Union Bank in California), which was acquired and integrated into U.S. Bank, while the Union Bank of India is an independent public sector bank headquartered in Mumbai.