Weeks, who was the second overall pick by the Milwaukee Brewers in the June draft, is a power hitter who also has speed. He won the last two NCAA batting titles.
This past season, he hit .500 with 16 homers, 67 RBI, and 27 stolen bases in 158 at-bats.
"Growing up as a little kid, I always wanted to be considered one of the best players in the country," Weeks said. "So, I'm very elated to win the USA Golden Spikes Award. It's the Heisman Trophy of baseball."