Jaclyn "Jackie" Jeschelnig-Ulm (born November 19, 1979, in Mentor, Ohio) is an American hammer thrower.

[1] A graduate of Ashland University, she won five NCAA Division II and nine Great Lakes Intercollegiate Athletic Conference championship titles in both the hammer and weight throw, and achieved a thirty-ninth-place finish at the 2004 Summer Olympics.

[3] While competing for the Eagles, she compiled a record of fourteen titles throughout her four-year collegiate career; nine of which came from the Great Lakes Intercollegiate Athletic Conference (GLIAC)and five from the NCAA Division II Championships.

She extended a remarkable toss to 62.23 m on her third attempt, but it was not worthily enough to put her through to the final, leaving Jeschelnig in last place among the Americans and thirty-ninth overall against a field of forty-eight hammer throwers at the end of the qualifying round.

[9][10] Jeschelnig-Ulm resides with her husband and fellow thrower Richard Ulm and works as a Vice President at JP Morgan Chase Columbus, Ohio.