* O'Reilly warns of "maladministration"
* Criticises G30 "secrecy", asks for stricter rules
FRANKFURT, Jan 17 (Reuters) - The European Central Bank's President Mario Draghi should give up his membership of the Group of 30 talking shop of financiers, as it risked hurting public confidence in the ECB's independence, the European Union's ombudsman said on Wednesday.
The G30 is a panel of senior figures from the finance industry, academics and current and former policymakers, which holds meetings on global financial issues behind closed doors.
At present its members include Draghi, Bank of England Governor Mark Carney and People's Bank of China Governor Zhou Xiaochuan, as well as Draghis and Carneys predecessors, two former chairs of the U.S. Federal Reserve, two former U.S. treasury secretaries and a former head of the Bank of Japan.
"The ECB Presidents membership of the G30 could give rise to a public perception that the independence of the ECB could be compromised," Ombudsman Emily O'Reilly said.
"For the ECB to allow this perception to arise over several years constitutes maladministration on its part."
An ECB spokesman said the central bank had taken note of the ombudsman's recommendations and would respond in due course.
O'Reilly, who can make non-binding recommendations, criticised what she described as "secrecy" surrounding the G30, including how members are chosen and what is discussed at the meetings. She said the ECB should tighten its rules regarding public engagements.
The criticism comes as the ECB is already under fire over other issues related to transparency and the appearance of being too close to industry, including its massive purchases of company debt, its handling of failing banks and the hiring of Draghi's top aide.
The G30 includes directors from banks regulated by the ECB, including Germany's Bayerische Landesbank, U.S. giant JPMorgan , whose Luxembourg subsidiary is ECB-supervised, and until recently Spain's Santander.
The chairman of UBS, Axel Weber, and the chief executive of Credit Suisse, Tidjane Thiam - two large Swiss banks with several subsidiaries in the euro zone - are also members.
O'Reilly, who was responding to a complaint by activist group Corporate Europe Observatory, said she had found no evidence that G30 meetings had influenced the ECB's work as the supervisor of the euro zone's largest banks.
The ECB previously said it benefits from the exchanges of views at the G30.
O'Reilly said the ECB should send representatives to G30 events open to external guests, only if it published agendas and non-confidential summaries, which it has declined to do so far.
She also asked that the ECB amended its rules to spell out that the six members of its Executive Board must be accompanied by staff to all meetings, and introduce equivalent rules for bank supervisors.
CEO, the activist group behind the complaint, has been criticising the ECB for being too close to the financial sector it is meant to supervise, including by letting financiers take most seats on its advisory group.
In a concession to critics, the ECB has announced plans to hold regular meetings with entrepreneurs outside finance. (Editing by Peter Graff)