A soybean cultivar designated WW109447 with high yield potential and tolerance to Roundup.TM. herbicide, further including the plants and seeds of the cultivar WW109447, methods for producing a soybean plant by crossing the cultivar WW109447 with itself or another soybean plant. The invention also relates to soybean cultivar WW109447 further comprising one or more single gene traits, and to methods of producing a soybean having such traits by introgression, transformation or mutagenesis. The invention also includes using the soybean cultivar WW109447 to produce other soybean cultivars, breeding lines, and progeny.