diff --git a/src/EXTRA-FIX/fix_deform_pressure.cpp b/src/EXTRA-FIX/fix_deform_pressure.cpp
index e2bcdd7f4e..672f097c2d 100644
--- a/src/EXTRA-FIX/fix_deform_pressure.cpp
+++ b/src/EXTRA-FIX/fix_deform_pressure.cpp
@@ -438,8 +438,6 @@ void FixDeformPressure::init()
   // error if style PRESSURE/ERATEER for yz, can't calculate if box flip occurs
 
   if (set[3].style && set[5].style) {
-    int flag = 0;
-    double lo,hi;
     if (flipflag && set[3].style == PRESSURE)
       error->all(FLERR, "Fix {} cannot use yz pressure with xy", style);
     if (flipflag && set[3].style == ERATERS)
diff --git a/src/ML-IAP/mliap_unified.cpp b/src/ML-IAP/mliap_unified.cpp
index 7697204e44..3f0d0b2a8f 100644
--- a/src/ML-IAP/mliap_unified.cpp
+++ b/src/ML-IAP/mliap_unified.cpp
@@ -246,7 +246,6 @@ void LAMMPS_NS::update_pair_energy(MLIAPData *data, double *eij)
 {
   double e_total = 0.0;
   const auto nlistatoms = data->nlistatoms;
-  const auto nlocal = data->nlocal;
   for (int ii = 0; ii < nlistatoms; ii++) data->eatoms[ii] = 0;
 
   for (int ii = 0; ii < data->npairs; ii++) {
@@ -268,7 +267,6 @@ void LAMMPS_NS::update_pair_forces(MLIAPData *data, double *fij)
 {
   //Bugfix: need to account for Null atoms in local atoms
   //const auto nlistatoms = data->nlistatoms;
-  const auto nlocal = data->nlocal;
   double **f = data->f;
   for (int ii = 0; ii < data->npairs; ii++) {
     int ii3 = ii * 3;
diff --git a/src/create_atoms.cpp b/src/create_atoms.cpp
index 2912701159..ded040b567 100644
--- a/src/create_atoms.cpp
+++ b/src/create_atoms.cpp
@@ -1505,7 +1505,7 @@ void CreateAtoms::get_xmol(double *center)
 
   onemol->quat_external = quatone;
 
-  int n, natoms = onemol->natoms;
+  int natoms = onemol->natoms;
   double xnew[3];
   for (int m = 0; m < natoms; m++) {
     MathExtra::matvec(rotmat, onemol->dx[m], xnew);