Jan-Paul Frederik Daniel Saeijs (born 20 June 1978) is a Dutch former professional footballer who played as a defender.
Born in The Hague, Saeijs made his debut in professional football for ADO Den Haag in the 1998âÂÂ99 season.
In January 2009, he joined Southampton on loan, with an option of making the deal permanent if Southampton were still in the Championship at the end of the 2008âÂÂ09 season. He made his debut in a 1âÂÂ0 victory over Barnsley on 10 January.
He scored his first two Southampton goals against Watford, a header and a 30-yard free kick.
On 10 June 2010 Saeijs signed with Eredivisie newcomer, De Graafschap. He signed a contract for 2 years. Saeijs announced his retirement from professional football in May 2012 and signed with Topklasse side HBS Craeyenhout from his home city The Hague. He retired from football altogether in June 2015.