diff --git a/recipes/ff/allow-longer-paths-for-ffopen.patch b/recipes/ff/allow-longer-paths-for-ffopen.patch
new file mode 100644
index 0000000000000..7a574f42eba70
--- /dev/null
+++ b/recipes/ff/allow-longer-paths-for-ffopen.patch
@@ -0,0 +1,28 @@
+From 441ea0fffb6d4af12b15545f72e159c84256fa53 Mon Sep 17 00:00:00 2001
+From: Matthew Feickert <matthew.feickert@cern.ch>
+Date: Mon, 23 Dec 2024 00:08:17 -0700
+Subject: [PATCH] fix: Allow for longer paths for ffopen (#8)
+
+* The ffopen subroutine path and fullname variables need to have enough
+  characters to hold longer paths that can come up, such as the $PREFIX
+  variable in conda-build builds, so extend the length to 512 (2^9) characters.
+---
+ src/ff/ffinit.f | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/ff/ffinit.f b/src/ff/ffinit.f
+index 463bd3b..7602e3c 100644
+--- a/src/ff/ffinit.f
++++ b/src/ff/ffinit.f
+@@ -756,7 +756,7 @@
+ 	character*(*) name
+ *
+ 	logical lopen
+-	character*128 path,fullname
++	character*512 path,fullname
+ *
+ 	include 'ff.h'
+ *
+-- 
+2.47.1
+
diff --git a/recipes/ff/meta.yaml b/recipes/ff/meta.yaml
new file mode 100644
index 0000000000000..b0facabb5584c
--- /dev/null
+++ b/recipes/ff/meta.yaml
@@ -0,0 +1,86 @@
+{% set name = "ff" %}
+{% set version = "2.0.0" %}
+
+package:
+  name: {{ name }}
+  version: {{ version }}
+
+source:
+    url: https://github.com/hep-packaging-coordination/ff/archive/v{{ version }}.tar.gz
+    sha256: 2329b3ca147825b660e07dac45ed85d397a1bea2f6b886518eb4d09900da5503
+    patches:
+      # Can be removed after the patched QCDLoop version is merged in v2.0.1.
+      - update-makefile.patch
+      # c.f. https://github.com/hep-packaging-coordination/ff/pull/8
+      - allow-longer-paths-for-ffopen.patch
+
+build:
+  number: 0
+
+outputs:
+  - name: {{ name }}-static
+
+    build:
+      skip: true  # [win or (osx and x86)]
+      script:
+        # FIXME: Patch out custom paths
+        # Note: Need the space at the end of '$PREFIX/share/ff/ ' so that
+        #
+        # fullname = path(1:index(path,' ')-1)//names
+        #
+        # in src/ff/ffinit.f can have a space to split on.
+        # This is a bug and should get fixed by using better logic for fullname.
+        - sed -i "s|/user/gj/lib/|$PREFIX/share/ff/ |g" src/ff/ffinit.f
+        - sed -i "s|/usr/local/ff/|$PREFIX/share/ff/ |g" src/ff/ffinit.f
+
+        - cd src/ff
+        - make install FC=$FC FFLAGS="$FFLAGS -std=legacy -ffixed-line-length-none" DEST=$PREFIX/lib --jobs="${CPU_COUNT}"
+        - mkdir -p $PREFIX/include/ff
+        - mv *.h $PREFIX/include/ff
+        - mkdir -p $PREFIX/share/ff
+        - mv *.dat $PREFIX/share/ff/
+
+    requirements:
+      build:
+        - {{ stdlib('c') }}
+        - {{ compiler('fortran') }}
+        - make
+        - libtool
+        - sed
+
+    test:
+      source_files:
+        - src/ff/npointes.f
+      requires:
+        - {{ compiler('fortran') }}
+      commands:
+        - test -f $PREFIX/lib/libff.a
+        - test -f $PREFIX/include/ff/aa.h
+        - test -f $PREFIX/include/ff/ff.h
+        - test -f $PREFIX/include/ff/ffs.h
+        - test -f $PREFIX/share/ff/fferr.dat
+        - test -f $PREFIX/share/ff/ffperm5.dat
+        - test -f $PREFIX/share/ff/ffwarn.dat
+
+        - $FC ./src/ff/npointes.f -o npointes $FFLAGS -I$PREFIX/include/ff $LDFLAGS -lff
+        - ./npointes
+
+about:
+  home: https://github.com/hep-packaging-coordination/ff
+  summary: 'FF: a package to evaluate one-loop integrals'
+  description: |
+    FF is a package to evaluate one-loop integrals written by G. J.
+    van Oldenborgh, NIKHEF-H, Amsterdam. For the the algorithms used see
+    preprint NIKHEF-H 89/17, 'New Algorithms for One-loop Integrals', by
+    G.J. van Oldenborgh and J.A.M. Vermaseren, published in Zeitschrift
+    fuer Physik C46(1990)425.
+    [DOI: 10.1007/BF01621031](https://doi.org/10.1007/BF01621031)
+  license: MIT
+  license_family: MIT
+  license_file: LICENSE
+  dev_url: https://github.com/hep-packaging-coordination/ff
+
+extra:
+  feedstock-name: ff
+  recipe-maintainers:
+    - matthewfeickert
diff --git a/recipes/ff/update-makefile.patch b/recipes/ff/update-makefile.patch
new file mode 100644
index 0000000000000..54551f5d3f60c
--- /dev/null
+++ b/recipes/ff/update-makefile.patch
@@ -0,0 +1,43 @@
+From 712ef3c8c1632a538526ece64be05a3763516b34 Mon Sep 17 00:00:00 2001
+From: Matthew Feickert <matthew.feickert@cern.ch>
+Date: Mon, 16 Dec 2024 22:30:45 -0700
+Subject: [PATCH] fix: Update the Makefile to avoid hardcoded f77
+
+* Apply the Makefile patches from QCDLoop v1.981's vendored version of FF.
+   - c.f. https://qcdloop.fnal.gov/
+---
+ src/ff/Makefile | 7 ++++---
+ 1 file changed, 4 insertions(+), 3 deletions(-)
+
+diff --git a/src/ff/Makefile b/src/ff/Makefile
+index f47b45e..6869326 100644
+--- a/src/ff/Makefile
++++ b/src/ff/Makefile
+@@ -1,4 +1,5 @@
+-FFLAGS        = 
++FC            = gfortran
++FFLAGS        = -std=legacy
+ 
+ LFLAGS	      = $(FFLAGS)
+ 
+@@ -7,7 +8,7 @@ DEST	      = /usr/local/lib
+ HDRS	      = aa.h \
+ 		ff.h
+ 
+-LIBRARY	      = ff.a
++LIBRARY	      = libff.a
+ 
+ MAKEFILE      = Makefile
+ 
+@@ -162,7 +163,7 @@ test:		npointes
+ 		diff -w npointes.out npointes.sun
+ 
+ npointes:	npointes.o $(LIBRARY)
+-		f77 $(LFLAGS) -o npointes npointes.o $(LIBRARY)
++		$(FC) $(LFLAGS) -o npointes npointes.o $(LIBRARY)
+ 
+ $(LIBRARY):	$(OBJS) $(AAOBJS)
+ 		ar cru $(LIBRARY) $(OBJS) $(AAOBJS)
+-- 
+2.47.1
+