The present invention relates to a touch sensor in which a sensor pattern is irregularly formed, and a touch screen panel using the same. The touch sensor includes a plurality of channels including a plurality of first sensor lines extending in a horizontal direction and a plurality of second sensor lines extending in a vertical direction and in contact with the plurality of first sensor lines at a plurality of contact points to form a mesh pattern. Therefore, occurrence of a moiré phenomenon is prevented, and the contact points between the sensor lines are distributed so as not to be concentrated in any one region, such that generation of a foreign material sensation may be minimized. Therefore, it is possible to prevent a decrease in visibility due to the generation of the foreign material sensation.