Tim Siekman (born 25 May 1990) is a Dutch former professional footballer who played as a centre-back.
While looking for a new club, Siekman kept training with FC Emmen although his contract had expired. On 4 September 2019, Siekman joined Belgian club Lommel SK.
In April 2020, Siekman returned to HHC Hardenberg, a club he had formerly represented between 2010 and 2013. He announced his retirement from football in April 2021.