Jack (held by Monica)
|First appearance||The Last One, Part 1|
|Last appearance||The Last One, Part 2|
|Number of episodes||2|
|Date of birth||2004|
|Relatives|| Biological: Erica (mother)|
Erica Geller-Bing (sister)
Adoptive: Monica Geller (mother)
Chandler Bing (father)
Jack Geller (grandfather)
Judy Geller (grandmother)
Charles Bing (grandfather)
Nora Tyler Bing (grandmother)
Ross Geller (uncle)
Ben Geller (cousin)
Emma Geller-Green (cousin)
Rachel Green (aunt by marriage)
- According to Monica, she wanted to name her son Daniel, yet she named him Jack.
- Jack was named after his adopted grandfather.
- Jack is the older one of the twins.