diff --git a/Library/Homebrew/build.rb b/Library/Homebrew/build.rb
index 8b18071d5f0ee..4eb6aab222932 100644
--- a/Library/Homebrew/build.rb
+++ b/Library/Homebrew/build.rb
@@ -122,7 +122,7 @@ def install
     }
 
     with_env(new_env) do
-      if args.debug?
+      if args.debug? && !Homebrew::EnvConfig.disable_debrew?
         require "debrew"
         formula.extend(Debrew::Formula)
       end
diff --git a/Library/Homebrew/env_config.rb b/Library/Homebrew/env_config.rb
index 35b56c45eec87..68cdcef9abc86 100644
--- a/Library/Homebrew/env_config.rb
+++ b/Library/Homebrew/env_config.rb
@@ -152,6 +152,10 @@ module EnvConfig
                      "budding) by e.g. turning warnings into errors.",
         boolean:     true,
       },
+      HOMEBREW_DISABLE_DEBREW:                   {
+        description: "If set, the interactive formula debugger available via `--debug` will be disabled.",
+        boolean:     true,
+      },
       HOMEBREW_DISABLE_LOAD_FORMULA:             {
         description: "If set, refuse to load formulae. This is useful when formulae are not trusted (such " \
                      "as in pull requests).",
diff --git a/Library/Homebrew/postinstall.rb b/Library/Homebrew/postinstall.rb
index a00f344f0845d..5a4eefc2e30d3 100644
--- a/Library/Homebrew/postinstall.rb
+++ b/Library/Homebrew/postinstall.rb
@@ -21,7 +21,7 @@
   trap("INT", old_trap)
 
   formula = T.must(args.named.to_resolved_formulae.first)
-  if args.debug?
+  if args.debug? && !Homebrew::EnvConfig.disable_debrew?
     require "debrew"
     formula.extend(Debrew::Formula)
   end
diff --git a/Library/Homebrew/sorbet/rbi/dsl/homebrew/env_config.rbi b/Library/Homebrew/sorbet/rbi/dsl/homebrew/env_config.rbi
index 2d527e640be92..6248e99c6c861 100644
--- a/Library/Homebrew/sorbet/rbi/dsl/homebrew/env_config.rbi
+++ b/Library/Homebrew/sorbet/rbi/dsl/homebrew/env_config.rbi
@@ -88,6 +88,9 @@ module Homebrew::EnvConfig
     sig { returns(T::Boolean) }
     def developer?; end
 
+    sig { returns(T::Boolean) }
+    def disable_debrew?; end
+
     sig { returns(T::Boolean) }
     def disable_load_formula?; end
 
diff --git a/Library/Homebrew/test.rb b/Library/Homebrew/test.rb
index 7a13b716941fa..5576563e1700c 100644
--- a/Library/Homebrew/test.rb
+++ b/Library/Homebrew/test.rb
@@ -35,7 +35,7 @@
   formula = T.must(args.named.to_resolved_formulae.first)
   formula.extend(Homebrew::Assertions)
   formula.extend(Homebrew::FreePort)
-  if args.debug?
+  if args.debug? && !Homebrew::EnvConfig.disable_debrew?
     require "debrew"
     formula.extend(Debrew::Formula)
   end
diff --git a/docs/Manpage.md b/docs/Manpage.md
index 1131883df5813..e3b493353976c 100644
--- a/docs/Manpage.md
+++ b/docs/Manpage.md
@@ -3691,6 +3691,11 @@ command execution e.g. `$(cat file)`.
 : If set, tweak behaviour to be more relevant for Homebrew developers (active or
   budding) by e.g. turning warnings into errors.
 
+`HOMEBREW_DISABLE_DEBREW`
+
+: If set, the interactive formula debugger available via `--debug` will be
+  disabled.
+
 `HOMEBREW_DISABLE_LOAD_FORMULA`
 
 : If set, refuse to load formulae. This is useful when formulae are not trusted
diff --git a/manpages/brew.1 b/manpages/brew.1
index 718567b7340cf..7231155458e20 100644
--- a/manpages/brew.1
+++ b/manpages/brew.1
@@ -2395,6 +2395,9 @@ If set, always assume \fB\-\-debug\fP when running commands\.
 \fBHOMEBREW_DEVELOPER\fP
 If set, tweak behaviour to be more relevant for Homebrew developers (active or budding) by e\.g\. turning warnings into errors\.
 .TP
+\fBHOMEBREW_DISABLE_DEBREW\fP
+If set, the interactive formula debugger available via \fB\-\-debug\fP will be disabled\.
+.TP
 \fBHOMEBREW_DISABLE_LOAD_FORMULA\fP
 If set, refuse to load formulae\. This is useful when formulae are not trusted (such as in pull requests)\.
 .TP