This is interesting to maybe three other people, but you'll have that sometimes. I was over at Baseball Reference checking out all the players who have worn 39, because that's just the sort of thing I do, and the list of 39ers seemed a lot longer than all the other ones. I checked, and 39 is indeed the most frequently issued Padres uniform number. 33 Padres have worn 39 through the years, edging out the 30 who have worn 8.
| Name | Year(s) |
| Dick Selma | 1969 |
| Jim Williams | 1969-70 |
| Jay Franklin | 1971 |
| Mike Corkins | 1972 |
| Victor Bernal | 1977 |
| Floyd Chiffer | 1982-83 |
| Elias Sosa | 1983 |
| Eddie Miller | 1984 |
| Roy Lee Jackson | 1985 |
| Tom Gorman | 1987 |
| Dan Murphy | 1989 |
| Jim Lewis | 1991 |
| Wes Gardner | 1991 |
| Pat Gomez | 1993 |
| Bryce Florie | 1994-96 |
| Pete Walker | 1996 |
| Will Cunnane | 1997-99 |
| George Williams | 2000 |
| Carlos Reyes | 2000 |
| Wascar Serrano | 2001 |
| Bobby Jones | 2002 |
| Steve Reed | 2002 |
| Charles Nagy | 2003 |
| Ben Howard | 2003 |
| Blaine Neal | 2004 |
| Wilson Valdez | 2005 |
| Tim Redding | 2005 |
| Mike Thompson | 2006-07 |
| Brian Falkenborg | 2008 |
| Sean Henn | 2008 |
| Ernesto Frieri | 2010-12 |
| Miles Mikolas | 2012-13 |
| Donn Roach | 2014 |
- Frieri is the team's all-time leader in games played wearing 39, with 103. Florie is second with 95, and Cunnane rounds out the top three with 81.
- Outfielder Jim Williams, first baseman Eddie Miller, catcher George Williams, and infielder Wilson Valdez are the only non-pitchers to wear 39 for the Padres.