Kilmarnock made 24-year-old defender Conrad Balatoni their latest signing ahead of Saturday's match against Dundee United.
The former Partick Thistle player left Firhill during the summer and was on the bench for Killie at Tannadice at the weekend.
Boss Gary Locke told the club website: "Conrad has great pedigree - he has been captain of Partick Thistle and he will bring a lot of good qualities and experience to the team.”