There are many different people you may be able to buy a life insurance policy on, including your parents, siblings, spouse, grandparents, business partner or family members.
However, in order to buy life insurance on someone else you need an insurable interest in that person. This means, you either would suffer financially if that person were to pass away, or you rely on that person for some form of financial support.
For instance, if your spouse were to die, and you rely on your spouse's income to help pay the bills, you have an insurable interest in your spouse and can purchase life insurance on him or her.
Learn more about who you can insure for life insurance