* MSCI Asia-Pacific index little changed, Nikkei up 0.3 pct
* Dollar/yen buoyant before Yellen's appearance, hits 1-mth high
* Euro sags after Draghi defends ECB's easy policy
* Crude oil's advance stalls after 3-day gain
TOKYO, June 27 (Reuters) - Japanese stocks edged towards two-year highs on Tuesday as exporters benefitted from dollar strength, with investors expecting comments from Federal Reserve Chair Janet Yellen to support the Fed's projection for one more interest rate rise this year.
Yellen is scheduled to take part in a discussion on global economic issues at London's Royal Academy and a number of other top Fed officials are also due to speak later in the global day.
Japan's benchmark Nikkei was last up 0.3 percent at 20,213.62 in subdued trading. A rise above 20,318.11, a peak scaled a week ago, would take the Nikkei to its highest since August 2015.
"The fundamental mood is not bad, but it's hard for investors to find direction on a day where there are no other major catalysts other than a weak yen," said Hikaru Sato, a senior technical analyst at Daiwa Securities in Tokyo.
Despite lower Treasury yields, the dollar extended overnight gains and was a shade higher at 111.960 yen after briefly rising to a one-month peak of 112.075.
Long-dated Treasury yields dropped to seven-month lows on Monday and the yield curve between five-year notes and 30-year bonds fell to its flattest level since 2007 after the weak U.S. economic data raised concerns about tepid growth and slowing inflation.
The euro was steady at $1.1186 having fallen back from an 11-day high of $1.1220 overnight after European Central Bank President Mario Draghi defended the central bank's easy monetary policy.
Otherwise, Asian markets lacked strong direction as Wall Street provided few catalysts after the S&P 500 and the Dow closed overnight effectively flat.
MSCI's broadest index of Asia-Pacific shares outside Japan stood little changed.
Having made record highs during the past two months on expectations that exporters will post strong earnings, South Korea's KOSPI inched up a further 0.1 percent.
Elsewhere, Shanghai's benchmark index dipped 0.1 percent and Australian shares lost 0.3 percent.
There was also a general sense of caution in financial markets, analysts said, noting that commodities like crude oil, which is suffering from a glut, remained shaky though a recent selloff has stalled.
"Although iron ore and crude prices are stabilizing, their recovery lacks strength. The U.S. equity market also hovers at a high level, but its performance is spotty with high-tech shares falling," said Masafumi Yamamoto, chief forex strategist at Mizuho Securities in Tokyo.
Oil prices were largely unchanged as the market took a breather after stabilizing over the past three days.
U.S. crude futures were up 0.1 percent at $43.43 a barrel. The contract had retreated to a 10-month low of $42.05 a barrel last week before the sharp retreat stalled, but it remained on track for a monthly loss of about 10 percent.
(Reporting by Shinichi Saoshiro; Editing by Simon Cameron-Moore)