Japan's gross domestic product was flat on a seasonally adjusted quarterly basis in the second quarter of 2016, the Cabinet Office said on Monday.
That missed expectations for an increase of 0.2 percent following the 0.5 percent increase in the first quarter.
On a yearly basis, GDP expanded 0.2 percent - also beneath forecasts for 0.7 percent and sharply lower than 1.9 percent in the three months prior.
Nominal GDP advanced 0.2 percent on quarter - in line with expectations and down from 0.6 percent in the previous three months.
The GDP deflator was up 0.8 percent on year, exceeding estimates for 0.7 percent although down from 0.9 percent in the first quarter.
Private consumption gained 0.2 percent on quarter - matching expectations and down from 0.7 percent in the three months prior.
Business spending contracted 0.4 percent on quarter versus forecasts for an increase of 0.2 percent following the 0.7 percent decline in the previous three months.
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