diff --git a/src/ipa/softisp/algorithms/af.cpp b/src/ipa/softisp/algorithms/af.cpp
new file mode 100644
index 000000000..557cca004
--- /dev/null
+++ b/src/ipa/softisp/algorithms/af.cpp
@@ -0,0 +1,53 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+/*
+ * Copyright (C) 2026 Red Hat Inc.
+ *
+ * Autofocus
+ */
+
+#include "af.h"
+
+#include <libcamera/base/log.h>
+
+#include <libcamera/control_ids.h>
+
+#include "libcamera/internal/software_isp/swisp_stats.h"
+
+namespace libcamera {
+
+namespace ipa::softisp::algorithms {
+
+LOG_DEFINE_CATEGORY(IPASoftIspAf)
+
+int Af::init(IPAContext &context, [[maybe_unused]] const ValueNode &tuningData)
+{
+	/* Informs that lens controls can get focus data */
+	context.afEnabled = true;
+
+	return 0;
+}
+
+int Af::configure(IPAContext &context,
+		  [[maybe_unused]] const IPAConfigInfo &configInfo)
+{
+	afAlgo_.configure(context.activeState.af);
+
+	return 0;
+}
+
+void Af::process(IPAContext &context,
+		 [[maybe_unused]] const uint32_t frame,
+		 [[maybe_unused]] IPAFrameContext &frameContext,
+		 const SwIspStats *stats,
+		 [[maybe_unused]] ControlList &metadata)
+{
+	const double variance = stats->variance;
+	LOG(IPASoftIspAf, Debug) << "Focus stats: " << variance;
+	afAlgo_.process(context.activeState.af, variance);
+}
+
+REGISTER_IPA_ALGORITHM(Af, "Af")
+
+} /* namespace ipa::softisp::algorithms */
+
+} /* namespace libcamera */
diff --git a/src/ipa/softisp/algorithms/af.h b/src/ipa/softisp/algorithms/af.h
new file mode 100644
index 000000000..881cb4475
--- /dev/null
+++ b/src/ipa/softisp/algorithms/af.h
@@ -0,0 +1,39 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+/*
+ * Copyright (C) 2026 Red Hat Inc.
+ *
+ * Autofocus
+ */
+
+#pragma once
+
+#include "libipa/af.h"
+
+#include "algorithm.h"
+#include "ipa_context.h"
+
+namespace libcamera {
+
+namespace ipa::softisp::algorithms {
+
+class Af : public Algorithm
+{
+public:
+	Af() = default;
+	~Af() = default;
+
+	int init(IPAContext &context, const ValueNode &tuningData) override;
+	int configure(IPAContext &context,
+		      const IPAConfigInfo &configInfo) override;
+	void process(IPAContext &context, const uint32_t frame,
+		     IPAFrameContext &frameContext,
+		     const SwIspStats *stats,
+		     ControlList &metadata) override;
+
+private:
+	AfAlgorithm afAlgo_;
+};
+
+} /* namespace ipa::softisp::algorithms */
+
+} /* namespace libcamera */
diff --git a/src/ipa/softisp/algorithms/meson.build b/src/ipa/softisp/algorithms/meson.build
index d240409e5..a386401db 100644
--- a/src/ipa/softisp/algorithms/meson.build
+++ b/src/ipa/softisp/algorithms/meson.build
@@ -2,6 +2,7 @@
 
 softisp_ipa_algorithms = files([
     'adjust.cpp',
+    'af.cpp',
     'awb.cpp',
     'agc.cpp',
     'blc.cpp',
diff --git a/src/ipa/softisp/data/uncalibrated.yaml b/src/ipa/softisp/data/uncalibrated.yaml
index fc90ca526..53d3792a2 100644
--- a/src/ipa/softisp/data/uncalibrated.yaml
+++ b/src/ipa/softisp/data/uncalibrated.yaml
@@ -4,6 +4,7 @@
 version: 1
 algorithms:
   - BlackLevel:
+  # - Af:
   - Awb:
   # Color correction matrices can be defined here. The CCM algorithm
   # has a significant performance impact, and should only be enabled
diff --git a/src/ipa/softisp/ipa_context.h b/src/ipa/softisp/ipa_context.h
index 05643296e..8546dedd8 100644
--- a/src/ipa/softisp/ipa_context.h
+++ b/src/ipa/softisp/ipa_context.h
@@ -20,6 +20,7 @@
 #include <libipa/camera_sensor_helper.h>
 #include <libipa/ccm.h>
 #include <libipa/fc_queue.h>
+#include "libipa/af.h"
 
 #include "core_ipa_interface.h"
 
@@ -38,6 +39,7 @@ struct IPAActiveState {
 	ipa::awb::ActiveState awb;
 	ipa::ccm::ActiveState ccm;
 	ipa::agc::ActiveState agc;
+	ipa::af::ActiveState af;
 
 	struct {
 		uint8_t level;
@@ -84,6 +86,7 @@ struct IPAContext {
 	FCQueue<IPAFrameContext> frameContexts;
 	ControlInfoMap::Map ctrlMap;
 	bool ccmEnabled = false;
+	bool afEnabled = false;
 };
 
 } /* namespace ipa::softisp */