Dr Jennifer Pugh, chief medical officer of the IHRB, added: "Michael's family took the decision to donate his organs at this incredibly difficult time, but in doing so made a choice that will make a real difference to the lives of other patients and their families.".
Irish jockey Michael O'Sullivan has died aged 24 as a result of injuries suffered during a fall in a race last week.
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He died on Sunday morning, the Irish Horseracing Regulatory Board (IHRB) confirmed in a statement on behalf of his family.
She said: "Michael's success and his humility will have inspired many and I share the feeling of loss today with all those who knew him.".
