Ondrej Bartko, ThB (born 13 August 1915) was a Slovak Lutheran pastor, theologian, publicist and film screenplay writer.

(Baccalaureatus Theologiae), title which was given only to those who achieved the highest marks at all 10 oral and 3 written State Exams which were undertaken upon graduation.

He was ordained to a Lutheran Pastor by the Bishop Dr. Vladimir Cobrda on 27 June 1937 in Bratislava's New Church on Legionarska Street.

In Trencin, he war an editor and publisher of magazine Spark (Iskra), which was later, closed down by the Slovak State authorities.

On the occasion of leaving Trencin for his first pastoral post in Ksinna, he was named an Honorary Chair of the National Lutheran Youth Organization.

He is an author of many sermons published in periodicals such as Novy Rod, Cirkevne Listy, Evanjelisky Posol spod Tatier, Straz na Sione and Trnavsky Kalendar.

[4] He wrote screenplays for television documentary films Jan Cajak (1996), Stefan Krcmery (2001), Ludovit Sensel (2001), Ludmila Podjavorinska (2003) and Potrebujem Tvoje Ruky (2004).

He appeared regularly in the television program Osobnosti Duchovneho Zivota where he shared his memories and discussions he had with many distinguished personalities in Slovak cultural life.