Michael "Mark" Ondayko (born 1963) is a former American radio broadcaster and co-host of the Kirk and Mark morning show on Baltimore's radio station WHFS (105.7).
Ondayko is a native of Middletown, Pennsylvania, and had worked in radio since 1978 (at the age of 14). Ondayko has hosted morning shows in Harrisburg, PA, Atlantic City, NJ, Pensacola, FL, and Augusta, GA, before coming to WIYY "98 Rock" in Baltimore, MD, in 1994. During his career, he has also worked as program director at WHTF York, WZXL Atlantic City, and as operations manager at WTKX Pensacola.
While at 98 Rock, Ondayko was a four-time co-nominee (with Kirk McEwen and R. Edward Lopez) for Active Rock Morning Show Personality of the Year.[1]
On February 1, 2007, Ondayko and McEwen began their new morning show on WHFS in Baltimore. They were canceled during the station's format change to Sports Talk on November 3, 2008.[2]
Beginning in May 2009 Ondayko opened his own insurance agency (Ondayko Insurance Strategies). On June 20, 2011 Ondayko also joined Times-Shamrock's classic rock outlet in Baltimore WZBA (100.7 The Bay) as an Account Executive.