Alibaba.com offers 33 mustard seed products. About 36% of these are single spices & herbs, 36% are oil seeds. A wide variety of mustard seed options are available to you, such as dried, natural. There are 33 mustard seed suppliers, mainly located in Asia. The top supplying country is Pakistan, which supply 100% of mustard seed respectively. Mustard seed products are most popular in South America, Africa, and South Asia. You can ensure product safety by selecting from certified suppliers, including 23 with Other, 3 with ISO9001, and 3 with ISO22000 certification.