Pak Ok-song (also Pak Ok-Seong, Korean: 박 옥성; born 16 October 1984) is a North Korean judoka, who played for the extra-lightweight category.

[2][3] Pak represented North Korea at the 2008 Summer Olympics in Beijing, where she competed for the women's extra-lightweight class (48 kg).

She defeated Portugal's Ana Hormigo and Kazakhstan's Kelbet Nurgazina in the preliminary rounds, before losing out the semi-final match, by an ippon (full point) and a yoko shiho gatame (side four quarter hold), to Cuba's Yanet Bermoy.

[4] Because Bermoy advanced further into the final match against Romania's Alina Dumitru, Pak automatically qualified for the bronze medal game, where she narrowly lost the medal to Argentina's Paula Pareto, who successfully scored a waza-ari (half-point) and a kuchiki taoshi (single leg takedown), at the end of the five-minute period.

[5] This biographical article related to North Korean judo is a stub.