Fellowships are outright grants for study and research that do not require you to perform any work or service in return for the award. Some examples of well-known fellowships are listed below. Many of these awards require institutional support from a faculty mentor and the Graduate Fellowships Committee. For information on these fellowships, read the listing below, consult the appropriate faculty advisor, and visit the fellowship's website.
For suggestions about fellowships for specific fields of study, please see the appropriate academic department. As you investigate graduate schools, make sure to inquire into school-specific or program-specific fellowships offered by the universities to which you are applying.
Below are two schematics that help show the timing and requirements of many of the most common fellowships.