diff --git a/src/KSPACE/pppm_disp.cpp b/src/KSPACE/pppm_disp.cpp
index bcb8993ddc..7c1b01f674 100644
--- a/src/KSPACE/pppm_disp.cpp
+++ b/src/KSPACE/pppm_disp.cpp
@@ -316,7 +316,6 @@ void PPPMDisp::init()
   for (int i=0; i<=EWALD_MAXORDER; ++i)                 // transcribe order
     if (ewald_order&(1<<i)) {                           // from pair_style
       int  k=0;
-      char str[128];
       switch (i) {
         case 1:
           k = 0; break;
diff --git a/src/MLIAP/mliap_descriptor_snap.cpp b/src/MLIAP/mliap_descriptor_snap.cpp
index d23ebc93fe..fa8724a2ca 100644
--- a/src/MLIAP/mliap_descriptor_snap.cpp
+++ b/src/MLIAP/mliap_descriptor_snap.cpp
@@ -149,15 +149,13 @@ void MLIAPDescriptorSNAP::forward(int* map, NeighList* list, double **descriptor
 void MLIAPDescriptorSNAP::backward(PairMLIAP* pairmliap, NeighList* list, double **beta, int vflag)
 {
   int i,j,jnum,ninside;
-  double delx,dely,delz,evdwl,rsq;
+  double delx,dely,delz,rsq;
   double fij[3];
   int *jlist,*numneigh,**firstneigh;
 
   double **x = atom->x;
   double **f = atom->f;
   int *type = atom->type;
-  int nlocal = atom->nlocal;
-  int newton_pair = force->newton_pair;
 
   numneigh = list->numneigh;
   firstneigh = list->firstneigh;
diff --git a/src/MLIAP/mliap_model.cpp b/src/MLIAP/mliap_model.cpp
index dfe3095541..2facd65ee6 100644
--- a/src/MLIAP/mliap_model.cpp
+++ b/src/MLIAP/mliap_model.cpp
@@ -142,7 +142,6 @@ void MLIAPModel::read_coeffs(char *coefffilename)
   }
 
   if (comm->me == 0) fclose(fpcoeff);
-
 }
 
 /* ----------------------------------------------------------------------
@@ -153,9 +152,7 @@ double MLIAPModel::memory_usage()
 {
   double bytes = 0;
 
-  int n = atom->ntypes+1;
   bytes += nelements*nparams*sizeof(double);  // coeffelem
-
   return bytes;
 }
 
diff --git a/src/fix_adapt.cpp b/src/fix_adapt.cpp
index 848b0b99a5..a524f92b77 100644
--- a/src/fix_adapt.cpp
+++ b/src/fix_adapt.cpp
@@ -586,9 +586,9 @@ void FixAdapt::change_settings()
       // reset radius to new value, for both owned and ghost atoms
       // also reset rmass to new value assuming density remains constant
       // for scaleflag, previous_diam_scale is the scale factor on previous step
-      
+
       if (ad->aparam == DIAMETER) {
-        double density,scale;
+        double scale;
         double *radius = atom->radius;
         double *rmass = atom->rmass;
         int *mask = atom->mask;
@@ -691,14 +691,14 @@ void FixAdapt::restore_settings()
 
     } else if (ad->which == ATOM) {
       if (diamflag) {
-        double density,scale;
+        double scale;
 
         double *vec = fix_diam->vstore;
         double *radius = atom->radius;
         double *rmass = atom->rmass;
         int *mask = atom->mask;
         int nlocal = atom->nlocal;
-        
+
         if (scaleflag) scale = previous_diam_scale;
 
         for (int i = 0; i < nlocal; i++)
diff --git a/src/info.cpp b/src/info.cpp
index 8cb87e9fea..de0dbb3917 100644
--- a/src/info.cpp
+++ b/src/info.cpp
@@ -793,7 +793,6 @@ bool Info::is_active(const char *category, const char *name)
 {
   if ((category == NULL) || (name == NULL)) return false;
   const char *style = "none";
-  const int len = strlen(name);
 
   if (strcmp(category,"package") == 0) {
     if (strcmp(name,"gpu") == 0) {
diff --git a/src/neighbor.cpp b/src/neighbor.cpp
index b3b406d604..258646f8a9 100644
--- a/src/neighbor.cpp
+++ b/src/neighbor.cpp
@@ -1438,7 +1438,7 @@ void Neighbor::init_topology()
 
 void Neighbor::print_pairwise_info()
 {
-  int i,m;
+  int i;
   NeighRequest *rq;
 
   const double cutghost = MAX(cutneighmax,comm->cutghostuser);
diff --git a/src/pair_table.cpp b/src/pair_table.cpp
index d8f1d75958..36eced6d3f 100644
--- a/src/pair_table.cpp
+++ b/src/pair_table.cpp
@@ -70,7 +70,6 @@ void PairTable::compute(int eflag, int vflag)
   int i,j,ii,jj,inum,jnum,itype,jtype,itable;
   double xtmp,ytmp,ztmp,delx,dely,delz,evdwl,fpair;
   double rsq,factor_lj,fraction,value,a,b;
-  char estr[128];
   int *ilist,*jlist,*numneigh,**firstneigh;
   Table *tb;