Four new species of Dorylaimida from Korea are described and illustrated. Belondira pugwiensis n. sp. is 1.7-1.9 mm long, b=3.3-4.2, c=58.1-65.8, V=35-37, odontostyle=6.5-7.3 $mu extrm{m}$ and characterized by having a prominent spindle-shaped valve area in the anterior part of oesophagus and long expanded part of oesophagus, occupying 68-70% of total oesophageal length. Lindseyus juwangens sp. n. is 3.5-4.1 mm long, b=13.3-14.5, c=11.6, V=40-40.3, odontostyle=6.6-7.4 $mu extrm{m}$ and characterized sp. n. is 1.7-2.1 mm long, b=3.9-4.6, c=5.8-6.3, V=47-49, odontostyle=29.2-32 $mu extrm{m}$ and characterized by continuous, truncated lip region and ventrally hooked tail end. Prodorylaimus taebekensis sp. n. is 1.2-1.5 mm long; b=4.2, c=5-6, V=43.3-47.2, odontostyle=16-19 $mu extrm{m}$, spicule=35-46 $mu extrm{m}$ and ventromedian supplements=5-6 and characterized with slightly set off lip region and long filiform tail with ventrally hooked terminus.