The first logo used by the Padres was unveiled shortly after their inaugural season in 1969; it featured a blue-and-gold shield with two crossed bats at its center, along with “San Diego” written across it in white letters, particularly in relation to the San Diego Padres Alternate logo. This logo remained largely unchanged until 1984 when an updated version was introduced that included more vibrant colors as well as enlarged text for “San Diego” and “Padres” beneath the shield itself. This new design would last until 1990 when yet another update occurred; this one replaced most elements from before while still maintaining some familiarity through its use of navy blue lettering on top of yellow background coloration for both words beneath the shield image itself (which now featured three stars instead).

In 2004, after 15 years of using essentially identical designs since 1990, another major change took place: gone were all references to "San Diego" or even "Padres", replaced instead by just one word - "SD". Accompanying this single-letter abbreviation was also a new font style that gave off more modern vibes than anything seen previously on any prior versions ever created for use by San Diegans' favorite baseball team! Fast forward to today where you can find variations upon variations within the same overall theme but all having been derived from the original 1969 concept – making sure everyone knows who is playing the ball down south on Pacific Coast League every summertime!