diff --git a/sentry-ruby/lib/sentry/backtrace/line.rb b/sentry-ruby/lib/sentry/backtrace/line.rb
index 741038e41..772af9060 100644
--- a/sentry-ruby/lib/sentry/backtrace/line.rb
+++ b/sentry-ruby/lib/sentry/backtrace/line.rb
@@ -31,30 +31,57 @@ class Line
 
       attr_reader :in_app_pattern
 
+      # Cache parsed Line data (file, number, method, module_name) by unparsed line string.
+      # Same backtrace lines appear repeatedly (same code paths, same errors).
+      # Values are frozen arrays to avoid mutation.
+      # Limited to 2048 entries to prevent unbounded memory growth.
+      PARSE_CACHE_LIMIT = 2048
+      @parse_cache = {}
+
+      # Cache complete Line objects by (unparsed_line, in_app_pattern) to avoid
+      # re-creating identical Line objects across exceptions.
+      @line_object_cache = {}
+
       # Parses a single line of a given backtrace
       # @param [String] unparsed_line The raw line from +caller+ or some backtrace
       # @return [Line] The parsed backtrace line
       def self.parse(unparsed_line, in_app_pattern = nil)
-        ruby_match = unparsed_line.match(RUBY_INPUT_FORMAT)
-
-        if ruby_match
-          file = ruby_match[1]
-          number = ruby_match[2]
-          module_name = ruby_match[4]
-          method = ruby_match[5]
-          if file.end_with?(CLASS_EXTENSION)
-            file.sub!(/\.class$/, RB_EXTENSION)
-          end
-        else
-          java_match = unparsed_line.match(JAVA_INPUT_FORMAT)
-          if java_match
-            module_name = java_match[1]
-            method = java_match[2]
-            file = java_match[3]
-            number = java_match[4]
+        cached = @parse_cache[unparsed_line]
+        unless cached
+          ruby_match = unparsed_line.match(RUBY_INPUT_FORMAT)
+
+          if ruby_match
+            file = ruby_match[1]
+            number = ruby_match[2]
+            module_name = ruby_match[4]
+            method = ruby_match[5]
+            if file.end_with?(CLASS_EXTENSION)
+              file.sub!(/\.class$/, RB_EXTENSION)
+            end
+          else
+            java_match = unparsed_line.match(JAVA_INPUT_FORMAT)
+            if java_match
+              module_name = java_match[1]
+              method = java_match[2]
+              file = java_match[3]
+              number = java_match[4]
+            end
           end
+          cached = [file, number, method, module_name].freeze
+          @parse_cache.clear if @parse_cache.size >= PARSE_CACHE_LIMIT
+          @parse_cache[unparsed_line] = cached
         end
-        new(file, number, method, module_name, in_app_pattern)
+
+        line = new(cached[0], cached[1], cached[2], cached[3], in_app_pattern)
+
+        # Cache the Line object — limited by parse cache limit
+        if @line_object_cache.size >= PARSE_CACHE_LIMIT
+          @line_object_cache.clear
+        end
+        pattern_cache = (@line_object_cache[object_cache_key] ||= {})
+        pattern_cache[in_app_pattern] = line
+
+        line
       end
 
       # Creates a Line from a Thread::Backtrace::Location object