Riley "Brock" Kjeldgaard (KELL-guard) (born January 22, 1986) is a Canadian former professional baseball player.

He played the 2006 and 2007 seasons as a pitcher for Helena, pitching in 33 games with a win–loss record of 1–3 and an earned run average of 5.53.

In April 2010, Kjeldgaard was assigned to the Brevard County Manatees of the Class-A Advanced Florida State League, where he started at first base.

On October 27, playing in the Arizona Fall League with the Phoenix Desert Dogs, he broke his foot.

[1] He began 2014 in the Atlantic League of Professional Baseball and then moved to the American Association.