Cognomen Smithhart (Smithhart 
) , in the world, is a rare surname. The surname Smithhart is characteristic of the United States, where it is a rare surname, New Zealand, where it is a very rare surname, and Canada.
Bo, Abby, Adam, Carl, Cody, Clay, Burl, Bill, Karl, Kirk, Kris, Paul, Rick, Rhea, Ryan, Dana, Dora, Doug, Drew, Geri, Greg, Lana, Arla, Lacy, Anna, Sean, Jo, Amy, Ada, Coy, Ken, Kim, Pat, Rob, Roy, Dan, Liz, Joy, Jen, Fay, Oma, Mary, Mark, Matt, Mike, Sara, Seth, Alen, and Lisa