diff --git a/src/USER-OMP/npair_half_size_multi_old_newtoff_omp.cpp b/src/USER-OMP/npair_half_size_multi_old_newtoff_omp.cpp
index 48fe1a8102..22128b29df 100644
--- a/src/USER-OMP/npair_half_size_multi_old_newtoff_omp.cpp
+++ b/src/USER-OMP/npair_half_size_multi_old_newtoff_omp.cpp
@@ -48,7 +48,7 @@ void NPairHalfSizeMultiOldNewtoffOmp::build(NeighList *list)
 #endif
   NPAIR_OMP_SETUP(nlocal);
 
-  int i,j,k,m,n,itype,jtype,ibin,ns;
+  int i,j,k,n,itype,jtype,ibin,ns;
   double xtmp,ytmp,ztmp,delx,dely,delz,rsq;
   double radi,radsum,cutdistsq;
   int *neighptr,*s;
diff --git a/src/USER-OMP/npair_half_size_multi_old_newton_omp.cpp b/src/USER-OMP/npair_half_size_multi_old_newton_omp.cpp
index 104ba2477c..6747778dd6 100644
--- a/src/USER-OMP/npair_half_size_multi_old_newton_omp.cpp
+++ b/src/USER-OMP/npair_half_size_multi_old_newton_omp.cpp
@@ -47,7 +47,7 @@ void NPairHalfSizeMultiOldNewtonOmp::build(NeighList *list)
 #endif
   NPAIR_OMP_SETUP(nlocal);
 
-  int i,j,k,m,n,itype,jtype,ibin,ns;
+  int i,j,k,n,itype,jtype,ibin,ns;
   double xtmp,ytmp,ztmp,delx,dely,delz,rsq;
   double radi,radsum,cutdistsq;
   int *neighptr,*s;
diff --git a/src/USER-OMP/npair_half_size_multi_old_newton_tri_omp.cpp b/src/USER-OMP/npair_half_size_multi_old_newton_tri_omp.cpp
index 41f6f764e4..73c36681f1 100644
--- a/src/USER-OMP/npair_half_size_multi_old_newton_tri_omp.cpp
+++ b/src/USER-OMP/npair_half_size_multi_old_newton_tri_omp.cpp
@@ -47,7 +47,7 @@ void NPairHalfSizeMultiOldNewtonTriOmp::build(NeighList *list)
 #endif
   NPAIR_OMP_SETUP(nlocal);
 
-  int i,j,k,m,n,itype,jtype,ibin,ns;
+  int i,j,k,n,itype,jtype,ibin,ns;
   double xtmp,ytmp,ztmp,delx,dely,delz,rsq;
   double radi,radsum,cutdistsq;
   int *neighptr,*s;
diff --git a/src/neighbor.cpp b/src/neighbor.cpp
index bc4349f9fc..8088629295 100644
--- a/src/neighbor.cpp
+++ b/src/neighbor.cpp
@@ -2511,8 +2511,7 @@ void Neighbor::modify_params(int narg, char **arg)
       if (iarg+1+ncollections > narg)
         error->all(FLERR,"Invalid collection/interval command");
 
-      int ntypes = atom->ntypes;
-      int n, nlo, nhi, i, j;
+      int i;
       
       // Invalidate old user cutoffs
       comm->ncollections_cutoff = 0;
@@ -2521,7 +2520,7 @@ void Neighbor::modify_params(int narg, char **arg)
       memory->grow(collection2cut,ncollections,"neigh:collection2cut");  
 
       // Set upper cutoff for each collection
-      char *id;
+
       double cut_interval;
       for (i = 0; i < ncollections; i++){
         cut_interval = utils::numeric(FLERR,arg[iarg+2+i],false,lmp);
diff --git a/src/nstencil_full_multi_2d.cpp b/src/nstencil_full_multi_2d.cpp
index 7236d2bb5a..f106b6c8af 100644
--- a/src/nstencil_full_multi_2d.cpp
+++ b/src/nstencil_full_multi_2d.cpp
@@ -49,7 +49,7 @@ void NStencilFullMulti2d::set_stencil_properties()
 
 void NStencilFullMulti2d::create()
 {
-  int icollection, jcollection, bin_collection, i, j, k, ns;
+  int icollection, jcollection, bin_collection, i, j, ns;
   int n = ncollections;
   double cutsq;