An inbred corn line, designated TDC1, is disclosed. The invention relates to the seeds of inbred corn line TDC1, to the plants of inbred corn line TDCI and to methods for producing a corn plant produced by crossing the inbred line TDC1 with itself or another corn line. The invention further relates to hybrid corn seeds and plants produced by crossing the inbred line TDC1 with another corn line.