Surmak Hoek was a Bajoran, who together with Surmak Stimson, was a parent of Surmak Ren, who was born in 2319. Their name appeared in Surmak Ren's personnel file. (DS9: "Babel")
This character was only mentioned in writing.
Surmak Hoek was never seen or identified by gender, so it is not clear whether Hoek was Ren's mother or father.
Surmak Hoek's name, like that of Surmak Stimson and Surmak Ren is an in-joke to the lead characters of the animated show "Ren and Stimpy".