A honeycomb filter includes a pillar-shaped honeycomb structure body having a porous partition wall surrounding cells each of which has one end plugged by a plugging portion. An open frontal area O (%) of the cells in the honeycomb structure body is 75 to 80%, a porosity P (%) of the partition wall measured by a mercury press-in method is 52 to 58%, an average pore diameter D (μm) of the partition wall measured by the mercury press-in method is 6 to 12 μm, and a pore volume rate A (%) of pores whose pore diameters are not less than 20 μm with respect to an overall pore volume of the partition wall is not more than 13.5%.