diff --git a/packages/block-library/src/button/style.scss b/packages/block-library/src/button/style.scss
index 26575cfa2fcf2..49ae444c83149 100644
--- a/packages/block-library/src/button/style.scss
+++ b/packages/block-library/src/button/style.scss
@@ -29,6 +29,7 @@ $blocks-button__line-height: $big-font-size + 6px;
 	}
 
 	&.alignright {
+		/*rtl:ignore*/
 		text-align: right;
 	}
 }
diff --git a/packages/block-library/src/categories/style.scss b/packages/block-library/src/categories/style.scss
index cb490a56e167f..0b5eeafd989ea 100644
--- a/packages/block-library/src/categories/style.scss
+++ b/packages/block-library/src/categories/style.scss
@@ -1,8 +1,10 @@
 .wp-block-categories {
 	&.alignleft {
+		/*rtl:ignore*/
 		margin-right: 2em;
 	}
 	&.alignright {
+		/*rtl:ignore*/
 		margin-left: 2em;
 	}
 }
diff --git a/packages/block-library/src/classic/editor.scss b/packages/block-library/src/classic/editor.scss
index 1a31c69c7a65f..bc4e371702a87 100644
--- a/packages/block-library/src/classic/editor.scss
+++ b/packages/block-library/src/classic/editor.scss
@@ -88,12 +88,16 @@
 	}
 
 	.alignright {
+		/*rtl:ignore*/
 		float: right;
+		/*rtl:ignore*/
 		margin: 0.5em 0 0.5em 1em;
 	}
 
 	.alignleft {
+		/*rtl:ignore*/
 		float: left;
+		/*rtl:ignore*/
 		margin: 0.5em 1em 0.5em 0;
 	}
 
diff --git a/packages/block-library/src/file/style.scss b/packages/block-library/src/file/style.scss
index 973de64b24ad6..61cf2ad25ec1b 100644
--- a/packages/block-library/src/file/style.scss
+++ b/packages/block-library/src/file/style.scss
@@ -6,6 +6,7 @@
 	}
 
 	&.alignright {
+		/*rtl:ignore*/
 		text-align: right;
 	}
 
diff --git a/packages/block-library/src/image/style.scss b/packages/block-library/src/image/style.scss
index 9268acdeeb920..01c3585be4a1f 100644
--- a/packages/block-library/src/image/style.scss
+++ b/packages/block-library/src/image/style.scss
@@ -41,12 +41,16 @@
 	}
 
 	.alignleft {
+		/*rtl:ignore*/
 		float: left;
+		/*rtl:ignore*/
 		margin-right: 1em;
 	}
 
 	.alignright {
+		/*rtl:ignore*/
 		float: right;
+		/*rtl:ignore*/
 		margin-left: 1em;
 	}
 
diff --git a/packages/block-library/src/latest-posts/style.scss b/packages/block-library/src/latest-posts/style.scss
index 2bbfb7384558b..0877c3d5dee9c 100644
--- a/packages/block-library/src/latest-posts/style.scss
+++ b/packages/block-library/src/latest-posts/style.scss
@@ -1,8 +1,10 @@
 .wp-block-latest-posts {
 	&.alignleft {
+		/*rtl:ignore*/
 		margin-right: 2em;
 	}
 	&.alignright {
+		/*rtl:ignore*/
 		margin-left: 2em;
 	}
 	&.is-grid {
diff --git a/packages/editor/src/components/block-list/style.scss b/packages/editor/src/components/block-list/style.scss
index 67f1aaa00a61d..c66a202741175 100644
--- a/packages/editor/src/components/block-list/style.scss
+++ b/packages/editor/src/components/block-list/style.scss
@@ -814,12 +814,23 @@
 			// It behaves as relative, in other words, until it reaches an edge and then behaves as fixed.
 			// But by applying a float, we take it out of this flow. The benefit is that we don't need to compensate for margins.
 			// In turn, this allows margins on sibling elements to collapse to parent elements.
+			// RTL note: this rule does need to be auto-flipped based on direction.
+			float: left;
+		}
+	}
+
+	.editor-block-list__block[data-align="left"] & {
+		@include break-small() {
+			// RTL note: this rule should not be auto-flipped based on direction.
+			/*rtl:ignore*/
 			float: left;
 		}
 	}
 
 	.editor-block-list__block[data-align="right"] & {
 		@include break-small() {
+			// RTL note: this rule should not be auto-flipped based on direction.
+			/*rtl:ignore*/
 			float: right;
 		}
 	}