Ixodes trianguliceps is a species of ticks from the family Ixodidae that feeds on such mammals as shrew, rats, mice, hedgehogs, foxes, squirrels, moles, rabbits and hares. It also frequently feeds on horses and humans. It is mostly found in European countries such as Belgium, Denmark, France, Germany, the Netherlands, Ireland, Poland, Norway, Sweden, Switzerland, the United Kingdom and northern parts of Spain, at elevations of up to .[1] It is also found in Belarus, Bulgaria, the Czech Republic, the Netherlands, Slovenia, Moldova, Ukraine and Russia.