Birth order and full names of RFK Jr’s siblings
Robert F Kennedy Jr is the eldest son of Robert F Kennedy and Ethel Skakel Kennedy. His full siblings, in birth order, are Kathleen (b. 1951), Joseph Jr (b. 1952), Robert F Kennedy Jr (b. 1954), David (b. 1955), and Mary (b. 1956). Several half-siblings were born after their parents’ divorce, including Kyle, Courtney, and Rory. This relationship explainer lists each sibling in order, year of birth, parent where noted, and brief context to clarify the RFK family structure.
Full list of Robert F Kennedy Jr’s full siblings with birth years
The table below shows Robert F Kennedy Jr’s full siblings (sharing both parents), ordered by birth year. Only full siblings are included here; steps and half-siblings appear separately below.
| Name | Year of birth | Shared parents with RFK Jr | Notes |
|---|---|---|---|
| Kathleen Kennedy Townsend | 1951 | Yes | Older sister, former Lieutenant Governor of Maryland |
| Joseph P Kennedy II | 1952 | Yes | Older brother, former U.S. Representative |
| Robert F Kennedy Jr | 1954 | Yes | Subject of this family overview |
| David Kennedy | 1955 | Yes | Died in 1984 |
| Mary Richardson Kennedy | 1956 | Yes | Died in 2012; wife of actor Mark Ruffalo |
Half-siblings born after divorce
After their parents’ separation, Ethel Kennedy had additional children with other partners. These half-siblings share one parent (Ethel) with Robert F Kennedy Jr but not both. Their names and birth years are listed here with brief context.
- Kyle Kennedy (b. 1960)
- Courtney Kennedy Hill (b. 1966)
- Rory Kennedy (b. 1968)
- Michael Lennis Kennedy (b. 1970)
- Max Kennedy (b. 1965)
- Caroline Kennedy (b. 1957, from Ethel’s later marriage)
Key relationships and clarifications
Because of the divorce and remarriage, family terms like “sister” or “brother” can refer to full or half-sibling relationships. In this family overview, “sibling” without qualification means full sibling. For clarity:
- Full siblings: share both biological parents (Kathleen, Joseph Jr, Robert F Kennedy Jr, David, Mary).
- Half-siblings: share one biological parent (Ethel) but not both (Kyle, Courtney, Rory, Michael, Max, and Caroline).
- Stepsiblings may also be present from parents’ later marriages; they are not listed here due to variability by marriage.
Common questions about RFK Jr’s siblings
People often ask how many siblings Robert F Kennedy Jr has, which are older or younger, and which remain publicly active. The answers below distinguish full from half-siblings and note birth order based on widely reported years. Dates and roles are summarized for quick orientation.
In summary, Robert F Kennedy Jr has five full siblings born between 1951 and 1956, and several half-siblings born after his parents divorced in 1981. Birth order from oldest to youngest among the full siblings is: Kathleen, Joseph Jr, Robert F Kennedy Jr, David, and Mary. Understanding the distinction between full and half-siblings helps clarify the structure of the RFK family.