It forecast exports from the three countries would total 54.1 million tonnes in the marketing year ending next June, MANA correspondent reported.
Their wheat production rose to 114.3 million tonnes this year from 101.7 million tonnes a year earlier after the planted area increased by about 800,000 hectares to 46.2 million hectares, UkrAgroConsult said in a report.
"In the current season the Black Sea region has become the key player in the world wheat market by achieving record high productivity during the 2016 harvesting campaign," UkrAgroConsult said.
"No doubt, in the 2016/17 marketing year the region will confirm its leadership as the world's largest wheat supplier."
Ukraine boosted its wheat exports by 13 percent in the first quarter of 2016/17 while Kazakhstan's shipments for the past five marketing years could be a record high, the consultancy said.
It expects a 15-20 percent increase in Kazakh grain export capacity and 20-25 percent growth in wheat flour exports this season.
Russia sales, however, are currently behind target, the consultancy said.