diff --git a/CHANGELOG.md b/CHANGELOG.md
index 36714ae7cc2a..bb6f32119434 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -40,6 +40,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 ### Improvements
 
 * (client/tx) [#18852](https://github.com/cosmos/cosmos-sdk/pull/18852) Add `WithFromName` to tx factory.
+* (types) [#18875](https://github.com/cosmos/cosmos-sdk/pull/18875) Speedup coins.Sort() if len(coins) <= 1
 
 ## [v0.47.7](https://github.com/cosmos/cosmos-sdk/releases/tag/v0.47.7) - 2023-12-20
 
diff --git a/types/coin.go b/types/coin.go
index ec3c90f3527c..daf29a37ca0a 100644
--- a/types/coin.go
+++ b/types/coin.go
@@ -827,7 +827,12 @@ var _ sort.Interface = Coins{}
 
 // Sort is a helper function to sort the set of coins in-place
 func (coins Coins) Sort() Coins {
-	sort.Sort(coins)
+	// sort.Sort(coins) does a costly runtime copy as part of `runtime.convTSlice`
+	// So we avoid this heap allocation if len(coins) <= 1. In the future, we should hopefully find
+	// a strategy to always avoid this.
+	if len(coins) > 1 {
+		sort.Sort(coins)
+	}
 	return coins
 }