Brand Finance added that the total brand value of Greek banks had risen over 100 percent over the year, "as successful austerity measures have begun to rapidly transform the country's economic outlook".
While the value of bank brands in Russia, India and Brazil fell, China continued to perform strongly. The value of the lenders' brands there rose by $19 billion during the year, and there are now three Chinese banks ranked in the top 10 — Industrial and Commercial Bank of China (ICBC), China Construction Bank and the Agricultural Bank of China.
(Read more: ICBC chief slams door on burned investors)
Overall, U.S. bank continued to dominate with four of the top 10 most valuable bank brands American — Wells Fargo, Bank of America, Citi and Chase — all of which had brands worth $23 billion or more.
—By CNBC's Katy Barnato. Follow her on Twitter: @KatyBarnato