Dennis Nels Holmberg (born August 2, 1951) is an American minor league baseball manager for the Bluefield Blue Jays, and was a professional baseball player for eight seasons in the minor leagues. Holmberg attended Brewton-Parker College and was chosen by the Montreal Expos in the 58th round of the 1969 amateur draft, but he declined to sign with them. The next year he was drafted in the 5th round by the Milwaukee Brewers, and he played eight seasons in their farm system. He began his professional career with the 1970 Newark Co-Pilots, splitting his time between third base and the outfield. In 1971, he was a part-time third baseman with the Danville Warriors. Holmberg spent the 1972 campaign with the San Antonio Brewers. In 1973, Dennis split his time between Danville and Shreveport.