The announcement was made Monday night on "The Bachelorette - After the Final Rose" following the dramatic "Bachelorette" finale, when Hartsock accepted contestant Chris Siegfried's proposal.
Galavis, 32, was sent home from the show when Hartsock chose not to give him a rose at the end of the sixth episode. The single father and former professional soccer player said he was blindsided by Hartsock's decision. However, he said his experience on "The Bachelorette" opened his eyes to the possibiltiy of finding real love.
Galavis will begin his search when Season 18 of "The Bachelor" hits ABC January 2014.