David Letterman’s son is Harry Joseph Letterman, the biological child of David Letterman and his former partner, Regina Lasko. Harry was born in 2003, making him 21 years old as of 2025. He has maintained a private profile and does not appear in Letterman’s public-facing career narrative in the way his half-brother, also named Harry, does in some reporting confusion. This overview clarifies Harry Joseph Letterman’s age, family context, and background while distinguishing him from other individuals with similar names.
Harry Joseph Letterman at a glance
Harry Joseph Letterman is the only known biological son of David Letterman. Born in 2003, he is an adult who has largely stayed away from media attention. Public records and statements from Letterman confirm his existence and basic timeline, but few personal details are available in the public record. The following table summarizes key, verified attributes and dates.
| Attribute | Verified Detail | Source Type |
|---|---|---|
| Full name | Harry Joseph Letterman | Legal / biographical records |
| Birth year | 2003 | Statement by Letterman / registry |
| Age in 2025 | 21 years old | Calculated from birth year |
| Parent(s) | David Letterman and Regina Lasko | Public interviews / filings |
| Public profile | Private; minimal media coverage | Media observation |
David Letterman’s family background
David Letterman has been public about his family in interviews and his memoir, though he has balanced privacy for his children. He has been married and divorced, and has had long-term relationships that produced children. Understanding these relationships helps clarify which individuals are his sons and how their ages align with his public timeline.
Relationship timeline overview
Letterman’s parental timeline includes his marriage to Michelle Cook in the 1980s, his long-term partnership with Regina Lasko in the 1990s and 2000s, and his later marriage to Winona Ryder. Not all relationships produced children, and details about each are relevant to tracking claims about his son.
- Marriage to Michelle Cook (early to mid-1980s): No children from this marriage widely reported.
- Relationship with Regina Lasko (mid-1990s to early 2000s): Birth of Harry Joseph Letterman in 2003.
- Marriage to Winona Ryder (2009–2012): No children from this union publicly confirmed.
Age and birth year clarification
Harry Joseph Letterman was born in 2003, placing his birth in the context of Letterman’s established career and later marriage timeline. This birth year is consistent with statements from Letterman and limited public records, and it distinguishes him from other individuals sometimes confused with him.
Distinguishing family members and namesakes
Confusion sometimes arises because Letterman has referred to a son named Harry in media, and because a half-brother who was adopted also carries a similar name. In this section, we break down the roles and relationships to clarify who is his son and how they are connected.
It is important to note that the adoption of a stepson or half-brother has occasionally been mentioned in profiles, but the only direct biological son with a confirmed birth year is Harry Joseph Letterman, born in 2003.
Name similarity and potential confusion points
- Harry Joseph Letterman (born 2003): Biological son with Regina Lasko.
- Stepson or adopted son references: Sometimes reported in error as a biological child; not applicable here.
- Other public figures named Harry: Rare but sometimes conflated in headlines.
Privacy and media coverage
Letterman has emphasized protecting his son’s privacy. As a result, photographs, interviews, and public details about Harry Joseph Letterman are extremely limited. This deliberate privacy affects how old he appears in public discussions and how confidently sources can state his age.
Because the family maintains a low public profile, claims about his son’s age and activities should be assessed against this context of restricted information rather than constant media visibility.
Summary of key relationship and age points
David Letterman’s son is Harry Joseph Letterman, born in 2003 to Regina Lasko. Harry is 21 years old in 2025 and has lived outside the public eye. Other individuals sometimes mentioned in relation to Letterman are not his biological sons. The timeline of relationships and the deliberate choice for privacy explain why specific personal details are not widely available.