The present invention provides the inbred maize variety designated SG350 and relates to all plant parts and tissue cultures of variety SG350. The invention further encompasses methods for producing derivations of variety SG350 such as gene-edited plants, transgenically-modified plants or trait integrated plants, and to all plant parts and tissues derived from such methods. The invention further relates to maize seeds and plants produced by crossing inbred SG350 with itself, or with another maize plant. The invention further relates to the inbred and hybrid genetic and/or genomic complements of variety SG350 plants, seeds, and tissues.