diff --git a/lib/rules/block-opening-brace-space-before/README.md b/lib/rules/block-opening-brace-space-before/README.md
index b4febe5201..b637275141 100644
--- a/lib/rules/block-opening-brace-space-before/README.md
+++ b/lib/rules/block-opening-brace-space-before/README.md
@@ -195,3 +195,24 @@ The following patterns are _not_ considered violations:
 ```css
 @for ...{}
 ```
+
+### `ignoreSelectors: ["/regex/", /regex/, "non-regex"]`
+
+Given:
+
+```
+[":root"]
+```
+
+The following patterns are _not_ considered violations:
+
+<!-- prettier-ignore -->
+```css
+:root
+{}
+```
+
+<!-- prettier-ignore -->
+```css
+:root{}
+```
diff --git a/lib/rules/block-opening-brace-space-before/__tests__/index.js b/lib/rules/block-opening-brace-space-before/__tests__/index.js
index 4102ae90a1..5df15bb104 100644
--- a/lib/rules/block-opening-brace-space-before/__tests__/index.js
+++ b/lib/rules/block-opening-brace-space-before/__tests__/index.js
@@ -81,7 +81,7 @@ testRule({
 
 testRule({
 	ruleName,
-	config: ['always', { ignoreAtRules: ['for'] }],
+	config: ['always', { ignoreAtRules: ['for', '/fo/', /fo/] }],
 	fix: true,
 
 	accept: [
@@ -109,53 +109,28 @@ testRule({
 
 testRule({
 	ruleName,
-	config: ['always', { ignoreAtRules: '/fo/' }],
+	config: ['always', { ignoreSelectors: ['a', '/a/', /a/] }],
 	fix: true,
 
 	accept: [
 		{
 			code: 'a { color: pink; }',
 		},
-		{
-			code: '@for ...\n{ color: pink; }',
-		},
-		{
-			code: '@for ...\r\n{ color: pink; }',
-		},
-	],
-
-	reject: [
 		{
 			code: 'a{ color: pink; }',
-			fixed: 'a { color: pink; }',
-			message: messages.expectedBefore(),
-			line: 1,
-			column: 1,
-		},
-	],
-});
-
-testRule({
-	ruleName,
-	config: ['always', { ignoreAtRules: /fo/ }],
-	fix: true,
-
-	accept: [
-		{
-			code: 'a { color: pink; }',
 		},
 		{
-			code: '@for ...\n{ color: pink; }',
+			code: 'a\n{ color: pink; }',
 		},
 		{
-			code: '@for ...\r\n{ color: pink; }',
+			code: 'a\r\n{ color: pink; }',
 		},
 	],
 
 	reject: [
 		{
-			code: 'a{ color: pink; }',
-			fixed: 'a { color: pink; }',
+			code: 'b{ color: pink; }',
+			fixed: 'b { color: pink; }',
 			message: messages.expectedBefore(),
 			line: 1,
 			column: 1,
diff --git a/lib/rules/block-opening-brace-space-before/index.js b/lib/rules/block-opening-brace-space-before/index.js
index 357d7d5b79..f4d6a63cea 100644
--- a/lib/rules/block-opening-brace-space-before/index.js
+++ b/lib/rules/block-opening-brace-space-before/index.js
@@ -46,6 +46,7 @@ function rule(expectation, options, context) {
 				actual: options,
 				possible: {
 					ignoreAtRules: [_.isString, _.isRegExp],
+					ignoreSelectors: [_.isString, _.isRegExp],
 				},
 				optional: true,
 			},
@@ -70,6 +71,11 @@ function rule(expectation, options, context) {
 				return;
 			}
 
+			// Return early if selector is to be ignored
+			if (optionsMatches(options, 'ignoreSelectors', statement.selector)) {
+				return;
+			}
+
 			const source = beforeBlockString(statement);
 			const beforeBraceNoRaw = beforeBlockString(statement, {
 				noRawBefore: true,