What's on the Left Sleeve of an Oakland Athletics Uniform? The Answer: It Varies

No Single "Official" Left‑Sleeve Patch for the A's

The Oakland Athletics (often abbreviated as "Oakland AS" or "A's") have worn numerous uniform designs since moving to Oakland in 1968. There is no single, permanent left‑sleeve patch or insignia that defines every era.

What Has Appeared on the Left Sleeve?

• 1970s–1980s: Often blank, or the MLB logo (after 1990s league‑wide adoption).
• 1990s–2000s: MLB "Batterman" logo (standard league placement).
• Anniversary Seasons: Commemorative patches (e.g., 25th, 50th in Oakland).
• Memorial Patches: Black armbands or small patches honoring former players, owners, or tragedies (e.g., Dave Stewart, Walter Haas, 9/11).
• Alternate/Throwback Jerseys: May feature era‑specific logos, "Oakland" script, or sponsor patches (recent MLB uniform ads).

Right Sleeve vs. Left Sleeve

Since 2020, MLB allows a sponsor patch on the right sleeve (e.g., "Las Vegas" patch in 2024 ahead of planned move). The left sleeve typically retains the MLB logo or a team‑specific commemorative patch.

So, the answer depends entirely on the season, jersey version, and occasion. Check photos from the specific game or year you're curious about.