diff --git a/src/EXTRA-COMPUTE/compute_stress_cartesian.cpp b/src/EXTRA-COMPUTE/compute_stress_cartesian.cpp
index 5c079620a5..182a961738 100644
--- a/src/EXTRA-COMPUTE/compute_stress_cartesian.cpp
+++ b/src/EXTRA-COMPUTE/compute_stress_cartesian.cpp
@@ -206,7 +206,7 @@ void ComputeStressCartesian::init_list(int /* id */, NeighList *ptr)
 void ComputeStressCartesian::compute_array()
 {
   int i, j, ii, jj, inum, jnum, itype, jtype;
-  int bin, bin1, bin2, bin3;
+  int bin, bin1, bin2;
   tagint itag, jtag;
   double xtmp, ytmp, ztmp, delx, dely, delz;
   double rsq, fpair, factor_coul, factor_lj;
@@ -266,7 +266,6 @@ void ComputeStressCartesian::compute_array()
   Pair *pair = force->pair;
   double **cutsq = force->pair->cutsq;
 
-  double risq, rjsq;
   double xi1, xi2, xj1, xj2;
 
   for (ii = 0; ii < inum; ii++) {
@@ -362,7 +361,7 @@ void ComputeStressCartesian::compute_pressure_1d(double fpair, double xi, double
                                                  double dely, double delz)
 {
   int bin_s, bin_e, bin_step, bin, bin_limit;
-  double xa, xb, l_sum;
+  double xa, xb;
 
   if (xi < domain->boxlo[dir1])
     xi += (domain->boxhi[dir1] - domain->boxlo[dir1]);
@@ -456,8 +455,8 @@ void ComputeStressCartesian::compute_pressure_1d(double fpair, double xi, double
   }
 }
 
-void ComputeStressCartesian::compute_pressure_2d(double fpair, double xi, double yi, double xj,
-                                                 double yj, double delx, double dely, double delz)
+void ComputeStressCartesian::compute_pressure_2d(double fpair, double xi, double yi, double /*xj*/,
+                                                 double /*yj*/, double delx, double dely, double delz)
 {
   int bin1, bin2, next_bin1, next_bin2;
   double la = 0.0, lb = 0.0, l_sum = 0.0;
diff --git a/src/EXTRA-COMPUTE/compute_stress_spherical.cpp b/src/EXTRA-COMPUTE/compute_stress_spherical.cpp
index 824e251d53..2210bc61a7 100644
--- a/src/EXTRA-COMPUTE/compute_stress_spherical.cpp
+++ b/src/EXTRA-COMPUTE/compute_stress_spherical.cpp
@@ -189,7 +189,6 @@ void ComputeStressSpherical::compute_array()
   double r, vr, vt, vp, theta;
   double **x = atom->x;
   double **v = atom->v;
-  double *mass = atom->mass;
   tagint *tag = atom->tag;
   int *type = atom->type;
   int *mask = atom->mask;
@@ -247,10 +246,6 @@ void ComputeStressSpherical::compute_array()
   Pair *pair = force->pair;
   double **cutsq = force->pair->cutsq;
 
-  double risq, rjsq;
-  double dir1i, dir2i, dir3i, dir1j, dir2j, dir3j;
-  double xi, yi, zi, xj, yj, zj;
-
   double qi[3], l1, l2, l3, l4, R1, R2, Fa, Fb, l_sum;
   double rij, f, ririj, sqr, la, lb, sql0, lambda0;
   double rsqxy, ririjxy, sqrixy, sqlxy0, A, B, C;
diff --git a/src/MESONT/pair_mesocnt.cpp b/src/MESONT/pair_mesocnt.cpp
index 4d6e30c191..e7625f625c 100644
--- a/src/MESONT/pair_mesocnt.cpp
+++ b/src/MESONT/pair_mesocnt.cpp
@@ -524,7 +524,6 @@ double PairMesoCNT::init_one(int /* i */, int /* j */)
 void PairMesoCNT::bond_neigh()
 {
   int nlocal = atom->nlocal;
-  int nghost = atom->nghost;
   int **bondlist = neighbor->bondlist;
   int nbondlist = neighbor->nbondlist;
 
diff --git a/src/ML-IAP/mliap_model_nn.cpp b/src/ML-IAP/mliap_model_nn.cpp
index a68b29eefa..c64fae2a1f 100644
--- a/src/ML-IAP/mliap_model_nn.cpp
+++ b/src/ML-IAP/mliap_model_nn.cpp
@@ -75,11 +75,8 @@ void MLIAPModelNN::read_coeffs(char *coefffilename)
                  utils::getsyserror());
   }
 
-  char line[MAXLINE], *ptr, *tstr;
-  int eof = 0;
-
-  int n;
-  int nwords = 0;
+  char line[MAXLINE], *ptr;
+  int n, eof = 0, nwords = 0;
   while (nwords == 0) {
     if (comm->me == 0) {
       ptr = fgets(line, MAXLINE, fpcoeff);
diff --git a/src/ML-PACE/pair_pace.cpp b/src/ML-PACE/pair_pace.cpp
index 56e3d6005d..e4141ae4b8 100644
--- a/src/ML-PACE/pair_pace.cpp
+++ b/src/ML-PACE/pair_pace.cpp
@@ -197,7 +197,6 @@ void PairPACE::compute(int eflag, int vflag)
 
     for (jj = 0; jj < jnum; jj++) {
       j = jlist[jj];
-      const int jtype = type[j];
       j &= NEIGHMASK;
       delx = x[j][0] - xtmp;
       dely = x[j][1] - ytmp;