"Captain America" LeBron James' high school sweetheart-turned-wife, Savannah, leads the charge ... with the Queen -- as well as the whole James gang -- showing up in Paris to check out all the action so far in the competition.

Joel Embiid -- who's reppin' 'Merica for the first time at the Olympics since becoming a U.S. citizen -- is hoping to finish at the top of the podium ... and even though she's Brazilian, we're sure his Sports Illustrated swimsuit model wife, Anne de Paula, will be his biggest cheerleader when he goes toe-to-toe with Victor Wembanyama.

Stephen Curry's wife, Ayesha, has also been in the City of Lights in support of the first-time Olympian ... and she's been reppin' her man at all times -- even when the whole fam spends their downtime making silly TikToks.

Jayson Tatum and singer Ella Mai's love might still be a bit fresh compared to his older teammates, but we're sure the two have made sure to stay as "Boo'd Up" as possible amid the Games.