Well Told Grants

NIH by activity code / Research grants

NIH R03 funding opportunities: Small Grant

14 NIH notices for R03 (Small Grant) are open and 1 forecast. A small, short project such as pilot work, a feasibility study, secondary data analysis or a new...

Open NIH R03 notices

Forecast R03 notices

Follow NIH R03 notices: RSS feed of new grants · subscribe to the deadlines in your calendar (or add this calendar link to Google Calendar under "From URL").

Institutes that fund R03 projects under these notices

Institute or centerProjects
National Cancer Institute (NCI)1,056
National Heart Lung and Blood Institute (NHLBI)799
National Institute on Aging (NIA)697
National Institute of Allergy and Infectious Diseases (NIAID)550
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)550
National Institute of Neurological Disorders and Stroke (NINDS)538
National Institute of General Medical Sciences (NIGMS)505
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)321
National Institute of Mental Health (NIMH)296
National Institute on Drug Abuse (NIDA)282

From NIH RePORTER: projects funded under the notices on this page, open and closed, by the institute that runs them.

Closed R03 notices

72 R03 notices posted since 2021 that have closed. NIH re-issues most notices under a new number, so an old notice usually has a newer version.

Questions people ask

What is an NIH R03?

R03 is NIH's activity code for the Small Grant. A small, short project such as pilot work, a feasibility study, secondary data analysis or a new method, usually for up to two years. Each notice sets its own budget limit, project length and due dates.

How many NIH R03 funding opportunities are open?

14 notices are open on Grants.gov, and 1 more is forecast, as of the latest data.

Other research grants: R00, R01, R13, R15, R16, R18, R21, R24, R25, R33, R34, R35, R36, R37, R38, R41, R42, R43, R44, R50, R61, RC2, RF1, RL1, RM1, RP1. All activity codes.

Due dates, budget limits and eligibility differ by notice; confirm them in the notice in the NIH Guide before you apply.