The current definition of unmet need for contraception assumes that all women who are using a method have a met need. We argue that without taking into account the level of satisfaction with a method, many women are classified as having a met need, when in fact they have an unmet need. They are using a method that does not meet their preferences, either because it causes side effects they find untenable or has other characteristics they do not like. Given the large number of contraceptive episodes that end in discontinuation, reportedly often due to the experience of side effects, we argue that the current definition of unmet need undercounts the number of women with a true unmet need for contraception as it misses the many women who are using a method that does not meet their preferences. We suggest the addition of satisfaction questions in national surveys such as the Demographic and Health Surveys to more fully assess the level of true met need for contraception.A n estimated 222 million women in low-and middle-income countries report an unmet need for contraception (Singh and Darroch 2012). Unmet need for contraception is currently defined as being of reproductive age (15-49 years), fecund, not wanting a child in at least the next two years, and not using any form of contraception, as well as women who report that their current or recent pregnancy was unintended. Unmet need is commonly used as a measure of programmatic need and quality, and the levels of unmet need often drive key funding and resource decisions around the provision of family planning services and international aid. In the current definition of unmet need, need is met when a woman who wants to prevent or delay a birth is using a method of modern contraception. However, this does not take into account whether the woman is using the form of contraception she desires: unmet need does not take into account level of satisfaction with method. Here we argue for expanding the definition of unmet need to incorporate elements of satisfaction with current method used.The global family planning community seeks to encourage more use of contraception, and is focused on reducing the number of women around the world having unmet need.