In a flash estimate based on consumer price data for six key German states, the federal statistics office Destatis calculated that German inflation stood at just 0.8 percent year-on-year last month, unchanged since July.
The last time inflation in Germany was lower than 0.8 percent was in February 2010.
Using the Harmonised Index of Consumer Prices (HICP) -- the yardstick used by the European Central Bank -- inflation in Germany was even lower at 0.7 percent in October, way below the ECB's annual inflation target of just below 2.0 percent.
The chronically low level of inflation across the 18-nation eurozone has fuelled concern the region could slip into deflation -- a sustained and widespread drop in prices that hampers economic activity and threatens job losses.
While falling prices may sound good for consumers, deflation can trigger a vicious spiral where businesses and households delay purchases, throttling demand and causing companies to lay off workers.