The most Influential people on Wall Street in 2010's first quarter is the following businessmen. * 10. Gary Cohn, President and CO Goldman Sachs Group * 9. Kenichi Watanabe, Chief Executive Officer Nomura Holdings * 8. Anshu Jain, Head of Global Markets Deutsche Bank * 7. Thomas Montag, President, Global Banking and Markets Bank of America/Merrill Lynch * 6. James Gorman, Chief Executive-designate Morgan Stanley * 5. Brady Dougan, Chief Executive Officer Credit Suisse * 4. Robert Diamond Jr. President Barclays * 3. Josef Ackermann, Chief Executive Officer Deutsche Bank * 2. Lloyd Blankfein, Chief Executive Officer Goldman Sachs Group * 1. James Dimon, Chief Executive Officer JPMorgan Chase & Co.