According to the invention, there is provided a novel soybean variety designated 98Y11. This invention thus relates to the seeds of soybean variety 98Y11, to the plants of soybean 98Y11 to plant parts of soybean variety 98Y11 and to methods for producing a soybean plant produced by crossing plants of the soybean variety 98Y11 with another soybean plant, using 98Y11 as either the male or the female parent.