Betty June "B.J." Nikkel was a state representative in the U.S. state of Colorado. She served in House leadership as Republican House Majority Whip, the fourth highest-ranking leader in the Colorado House of Representatives. Nikkel was appointed to the Colorado House of Representatives in January 2009 by vacancy committee to fill the vacancy caused by Kevin Lundberg's appointment to the Colorado State Senate. She was sworn in on January 22, 2009.