* EU, IMF, World Bank join forces in $25.1 bln bailout
* Analysts say deal shows concern for Central Europe region
* Forint gains 2.5 pct, Budapest stocks up 11.4 pct
* Austrian banks pledge to keep lending, investing.
(Adds IMF, central bank comments, debt agency)
By Balazs Koranyi and Gergely Szakacs
BUDAPEST, Oct 29 (Reuters) - A $25.1 billion bailout of Hungary by the IMF and European Union settled nerves in the bloc's ex-communist countries on Wednesday, though the regional fallout of the financial crisis looked to have some way to run.
The larger-than-expected rescue, the biggest for an emerging market economy since the global crisis began, dwarfed the $2 billion and $16.5 billion sums offered earlier to fellow strugglers Iceland and Ukraine.
The amount was twice as much as markets had anticipated and mostly covered analysts' estimates of Budapest's financing needs over the next year. The IMF said the size of the deal was meant to send a signal to calm plummeting markets.
"We felt that the size of the package should be such that markets should be reassured that there's sufficient volume behind it," IMF Senior Advisor Anne-Marie Gulde told a news conference.
Its immediate impact on Wednesday was to boost the forint currency and stock exchange -- welcome relief after weeks of panic selling that had hammered the forint lower by almost 20 percent and caused the bond market to freeze up.
The unit jumped more than 2.5 percent versus the euro in early trade and the Polish zloty and Czech crown also gained. Shares on the Budapest bourse <
>jumped 12 percent, led by OTP Bank <OTPB.BU> and oil group MOL <MOLB.BU>.In contrast in Ukraine, who has tapped the IMF but remains outside of the EU, saw its hryvnia currency plummet to an all-time low, at one point losing 14 percent on the day.
CRISIS MANAGEMENT
The financial crisis has come as a shock to most countries in central and eastern Europe, a region of states ranging from those still struggling with fundamental economic problems to those fully integrated in the European Union and euro zone.
Countries across the region have slashed growth forecasts and analysts have expressed worries over economies in the Baltics and Balkans, which were headed for at best bumpy landings even before the latest round of financial turmoil.
Economists welcomed Hungary's rescue package but said it also underscored that the financial crisis was far from over.
"This clearly illustrates that the financial crisis is significantly greater in Central and Eastern Europe than most market participants have been willing to accept until now," Danske Bank Chief Analyst Lars Christensen said.
"The fact the EU is so directly involved indicates that the EU (and the ECB) is afraid that if Hungary were allowed to implode, then the crisis could rapidly spread to the other CEE countries."
The deal will force Hungary to make painful budget cuts after two years of austerity and may worsen the outlook for an economy heading for recession.
Hungary's government said on Tuesday the economy could contract by up to 1 percent next year -- the first recession since the fall of communism -- although the effects of budget cuts to accompany the deal were still not clear.
Foreign banks KBC <KBC.BR>, Raiffeisen International <RIBH.VI>, Erste Group Bank <ERST.VI> and UniCredit's <CRDI.MI> Bank Austria -- which own Hungarian units that are the country's key lenders -- all said their local units would continue lending forints and, where appropriate, euros to Hungarian clients.
CLOSER TO EURO ADOPTION?
The IMF said it had agreed to offer Hungary a $15.7 billion (12.5 billion euros) loan programme, while the EU stood ready with an additional $8.1 billion in financing and the World Bank another $1.3 billion. The loans, with maturity between 3 and 5 years will bear a fixed interest of 5 to 6 percent.
The crisis will put back Hungary's drive to catch up with Western Europe but analysts said the IMF help may actually push the country -- long regarded as the region's sick man -- closer to membership of the euro zone in the longer run.
"This will stigmatize Hungary for quite a while," Citigroup economist Eszter Gargyan said. "But Hungary has become detached from its (central European) peers quite a while ago and it's not IMF help that has sullied our reputation."
Investors had feared Hungary's heavy dependence on borrowing from abroad -- 90 percent of mortgages this year were in Swiss franc loans -- meant the country could struggle to continue to find financing from foreign sources to fuel its economy.
To encourage investors to keep cash in the country, the central bank raised interest rates last week by 3 percentage points to 11.5 percent, but even that measure failed to kick-start the bond market.
"I believe that the interest rate hike was the right step ... it made speculating against the forint much more expensive," Central Bank Governor Andras Simor said. he said the bank needed a month or two to review policy and adjust to the situation. (Editing by Michael Winfrey, Patrick Graham and Victoria Main)