A fuel filter is disclosed which comprises a filter medium (16) having a dirty side and a clean side, the filter medium (16) being arranged such that, in use, fuel flows through the filter medium (16) from the dirty side to the clean side, and a filter member (18) located on the dirty side of the filter medium (16), the filter member (18) having a plurality of small openings permitting fuel to flow therethrough, but restricting the flow of large particles to the filter medium (16), and a plurality of large openings (20) whereby fuel containing such large particles is able to flow to the filter medium (16).