diff --git a/lib/atc/LinearSolver.cpp b/lib/atc/LinearSolver.cpp
index ea31a64a74..655d6130c4 100644
--- a/lib/atc/LinearSolver.cpp
+++ b/lib/atc/LinearSolver.cpp
@@ -65,7 +65,7 @@ LinearSolver::LinearSolver(
     matrixModified_(false),
     allowReinitialization_(false), 
     homogeneousBCs_(false),
-    bcs_(NULL), // null implies no contraints will be added later
+    bcs_(NULL), // null implies no constraints will be added later
     rhs_(NULL),
     rhsDense_(), b_(NULL),
     matrix_(A),
diff --git a/python/README b/python/README
index f0e95d3c45..86e599a404 100644
--- a/python/README
+++ b/python/README
@@ -23,7 +23,7 @@ of LAMMPS:
 >>> from lammps import lammps
 >>> lmp = lammps()
 
-If that gives no errors, you have succesfully wrapped LAMMPS with
+If that gives no errors, you have successfully wrapped LAMMPS with
 Python.  See doc/Section_python.html#py_7 for tests you can then use
 to run LAMMPS both in serial or parallel thru Python.
 
diff --git a/src/ASPHERE/compute_erotate_asphere.h b/src/ASPHERE/compute_erotate_asphere.h
index be1c534923..23e30d7c93 100644
--- a/src/ASPHERE/compute_erotate_asphere.h
+++ b/src/ASPHERE/compute_erotate_asphere.h
@@ -56,6 +56,6 @@ Self-explanatory.
 
 E: Compute erotate/asphere requires extended particles
 
-This compute cannot be used with point paritlces.
+This compute cannot be used with point particles.
 
 */
diff --git a/src/ASPHERE/compute_temp_asphere.h b/src/ASPHERE/compute_temp_asphere.h
index 4688a5612d..d1cce38025 100644
--- a/src/ASPHERE/compute_temp_asphere.h
+++ b/src/ASPHERE/compute_temp_asphere.h
@@ -65,7 +65,7 @@ Self-explanatory.
 
 E: Compute temp/asphere requires extended particles
 
-This compute cannot be used with point paritlces.
+This compute cannot be used with point particles.
 
 E: Could not find compute ID for temperature bias
 
diff --git a/src/PYTHON/python.h b/src/PYTHON/python.h
index 61e5f015e2..5f65e3970b 100644
--- a/src/PYTHON/python.h
+++ b/src/PYTHON/python.h
@@ -94,12 +94,12 @@ path and name are correct.
 
 E: Could not process Python file
 
-The Python code in the specified file was not run sucessfully by
+The Python code in the specified file was not run successfully by
 Python, probably due to errors in the Python code.
 
 E: Could not process Python string
 
-The Python code in the here string was not run sucessfully by Python,
+The Python code in the here string was not run successfully by Python,
 probably due to errors in the Python code.
 
 E: Could not find Python function
@@ -123,7 +123,7 @@ Self-explanatory.
 
 E: Python function evaluation failed
 
-The Python function did not run succesfully and/or did not return a
+The Python function did not run successfully and/or did not return a
 value (if it is supposed to return a value).  This is probably due to
 some error condition in the function.
 
diff --git a/src/SHOCK/fix_append_atoms.h b/src/SHOCK/fix_append_atoms.h
index d9885998be..cc26acc8b8 100644
--- a/src/SHOCK/fix_append_atoms.h
+++ b/src/SHOCK/fix_append_atoms.h
@@ -94,7 +94,7 @@ type p (periodic).
 
 E: Cannot append atoms to a triclinic box
 
-The simulation box must be defined with edges alligned with the
+The simulation box must be defined with edges aligned with the
 Cartesian axes.
 
 E: Fix ID for fix ave/spatial does not exist
diff --git a/src/SRD/fix_srd.h b/src/SRD/fix_srd.h
index fae9780b89..e14652e526 100644
--- a/src/SRD/fix_srd.h
+++ b/src/SRD/fix_srd.h
@@ -361,11 +361,11 @@ warning.
 
 E: Bad quadratic solve for particle/line collision
 
-This is an internal error.  It should nornally not occur.
+This is an internal error.  It should normally not occur.
 
 E: Bad quadratic solve for particle/tri collision
 
-This is an internal error.  It should nornally not occur.
+This is an internal error.  It should normally not occur.
 
 W: Fix srd particle moved outside valid domain
 
@@ -377,7 +377,7 @@ Big particles must be extended spheriods or ellipsoids.
 
 E: Cannot use lines with fix srd unless overlap is set
 
-This is because line segements are connected to each other.
+This is because line segments are connected to each other.
 
 E: Cannot use tris with fix srd unless overlap is set
 
diff --git a/src/angle.h b/src/angle.h
index 119f206c36..8c8129bbbb 100644
--- a/src/angle.h
+++ b/src/angle.h
@@ -27,7 +27,7 @@ class Angle : protected Pointers {
   int *setflag;
   int writedata;                  // 1 if writes coeffs to data file
   double energy;                  // accumulated energies
-  double virial[6];               // accumlated virial
+  double virial[6];               // accumulated virial
   double *eatom,**vatom;          // accumulated per-atom energy/virial
 
   // KOKKOS host/device flag and data masks
diff --git a/src/bond.h b/src/bond.h
index 06e05a7265..ffa1f5fb05 100644
--- a/src/bond.h
+++ b/src/bond.h
@@ -27,7 +27,7 @@ class Bond : protected Pointers {
   int *setflag;
   int writedata;                  // 1 if writes coeffs to data file
   double energy;                  // accumulated energies
-  double virial[6];               // accumlated virial
+  double virial[6];               // accumulated virial
   double *eatom,**vatom;          // accumulated per-atom energy/virial
 
   // KOKKOS host/device flag and data masks
diff --git a/src/citeme.h b/src/citeme.h
index 80b642ab6d..18e9a712db 100644
--- a/src/citeme.h
+++ b/src/citeme.h
@@ -42,7 +42,7 @@ E: Cannot open log.cite file
 
 This file is created when you use some LAMMPS features, to indicate
 what paper you should cite on behalf of those who implemented
-the feature.  Check that you have write priveleges into the directory
+the feature.  Check that you have write privileges into the directory
 you are running in.
 
 */
diff --git a/src/dihedral.h b/src/dihedral.h
index 68167eb86f..5f3909244f 100644
--- a/src/dihedral.h
+++ b/src/dihedral.h
@@ -27,7 +27,7 @@ class Dihedral : protected Pointers {
   int *setflag;
   int writedata;                     // 1 if writes coeffs to data file
   double energy;                     // accumulated energy
-  double virial[6];                  // accumlated virial
+  double virial[6];                  // accumulated virial
   double *eatom,**vatom;             // accumulated per-atom energy/virial
 
   // KOKKOS host/device flag and data masks
diff --git a/src/fix.h b/src/fix.h
index bd3189afe7..8005da1add 100644
--- a/src/fix.h
+++ b/src/fix.h
@@ -89,7 +89,7 @@ class Fix : protected Pointers {
   int comm_reverse;              // size of reverse communication (0 if none)
   int comm_border;               // size of border communication (0 if none)
 
-  double virial[6];              // accumlated virial
+  double virial[6];              // accumulated virial
   double *eatom,**vatom;         // accumulated per-atom energy/virial
 
   int restart_reset;             // 1 if restart just re-initialized fix
diff --git a/src/fix_ave_chunk.h b/src/fix_ave_chunk.h
index 18622699de..eb51043e0f 100644
--- a/src/fix_ave_chunk.h
+++ b/src/fix_ave_chunk.h
@@ -162,7 +162,7 @@ Self-explanatory.
 
 E: Fix ave/chunk does not use chunk/atom compute
 
-The specified conpute is not for a compute chunk/atom command.
+The specified compute is not for a compute chunk/atom command.
 
 E: Error writing file header
 
diff --git a/src/fix_langevin.h b/src/fix_langevin.h
index 863c0f554c..34eec63987 100644
--- a/src/fix_langevin.h
+++ b/src/fix_langevin.h
@@ -132,7 +132,7 @@ One of the particles has radius 0.0.
 
 E: Fix langevin angmom requires extended particles
 
-This fix option cannot be used with point paritlces.
+This fix option cannot be used with point particles.
 
 E: Cannot zero Langevin force of 0 atoms
 
diff --git a/src/improper.h b/src/improper.h
index b20bc732df..be78b6acf9 100644
--- a/src/improper.h
+++ b/src/improper.h
@@ -27,7 +27,7 @@ class Improper : protected Pointers {
   int *setflag;
   int writedata;                  // 1 if writes coeffs to data file
   double energy;                  // accumulated energies
-  double virial[6];               // accumlated virial
+  double virial[6];               // accumulated virial
   double *eatom,**vatom;          // accumulated per-atom energy/virial
 
   // KOKKOS host/device flag and data masks
diff --git a/src/kspace.h b/src/kspace.h
index 95fb6ffaf2..c514516194 100644
--- a/src/kspace.h
+++ b/src/kspace.h
@@ -33,7 +33,7 @@ class KSpace : protected Pointers {
  public:
   double energy;                 // accumulated energies
   double energy_1,energy_6;
-  double virial[6];              // accumlated virial
+  double virial[6];              // accumulated virial
   double *eatom,**vatom;         // accumulated per-atom energy/virial
   double e2group;                // accumulated group-group energy
   double f2group[3];             // accumulated group-group force
diff --git a/src/procmap.cpp b/src/procmap.cpp
index 088939b218..f54ac1915c 100644
--- a/src/procmap.cpp
+++ b/src/procmap.cpp
@@ -216,7 +216,7 @@ void ProcMap::numa_grid(int nprocs, int *user_procgrid, int *procgrid,
 
   best_factors(numapossible,numafactors,numagrid,1,1,1);
 
-  // user_nodegrid = implied user contraints on nodes
+  // user_nodegrid = implied user constraints on nodes
 
   int user_nodegrid[3];
   user_nodegrid[0] = user_procgrid[0] / numagrid[0];
diff --git a/src/region_cylinder.h b/src/region_cylinder.h
index bc5255b343..e065c7d3f1 100644
--- a/src/region_cylinder.h
+++ b/src/region_cylinder.h
@@ -78,6 +78,6 @@ Self-explanatory.
 
 E: Variable for region cylinder is invalid style
 
-Only equal-style varaibles are allowed.
+Only equal-style variables are allowed.
 
 */
diff --git a/src/region_sphere.h b/src/region_sphere.h
index 9e1fb4e739..c003a91651 100644
--- a/src/region_sphere.h
+++ b/src/region_sphere.h
@@ -69,6 +69,6 @@ Self-explanatory.
 
 E: Variable for region sphere is invalid style
 
-Only equal-style varaibles are allowed.
+Only equal-style variables are allowed.
 
 */
diff --git a/src/thermo.h b/src/thermo.h
index ddbe3cc95b..d6b3822efe 100644
--- a/src/thermo.h
+++ b/src/thermo.h
@@ -236,7 +236,7 @@ E: Lost atoms: original %ld current %ld
 Lost atoms are checked for each time thermo output is done.  See the
 thermo_modify lost command for options.  Lost atoms usually indicate
 bad dynamics, e.g. atoms have been blown far out of the simulation
-box, or moved futher than one processor's sub-domain away before
+box, or moved further than one processor's sub-domain away before
 reneighboring.
 
 W: Lost atoms: original %ld current %ld
@@ -244,7 +244,7 @@ W: Lost atoms: original %ld current %ld
 Lost atoms are checked for each time thermo output is done.  See the
 thermo_modify lost command for options.  Lost atoms usually indicate
 bad dynamics, e.g. atoms have been blown far out of the simulation
-box, or moved futher than one processor's sub-domain away before
+box, or moved further than one processor's sub-domain away before
 reneighboring.
 
 E: Thermo style does not use temp
diff --git a/tools/eff/cfg2lammps.py b/tools/eff/cfg2lammps.py
index 1bf364aa93..49830dbb09 100644
--- a/tools/eff/cfg2lammps.py
+++ b/tools/eff/cfg2lammps.py
@@ -217,7 +217,7 @@ def generate_lammps_input(infile):
         if line.find("e_field_packet_duration")>=0:
           continue
         if line.find("set_limit")>=0:
-          continue	# need to add this contraint
+          continue	# need to add this constraint
         if line.find("set_limit_stiffness")>=0:
           continue
         if line.find("output_position")>=0:
diff --git a/tools/i-pi/ipi/engine/initializer.py b/tools/i-pi/ipi/engine/initializer.py
index 466677938a..de629c7f96 100644
--- a/tools/i-pi/ipi/engine/initializer.py
+++ b/tools/i-pi/ipi/engine/initializer.py
@@ -70,7 +70,7 @@ class InitBase(dobject):
       Args:
          value: A string which specifies what value to initialize the
             simulation property to.
-         mode: A string specifiying what style of initialization should be
+         mode: A string specifying what style of initialization should be
             used to read the data.
          units: A string giving which unit the value is in.
       """
@@ -97,7 +97,7 @@ class InitIndexed(InitBase):
       Args:
          value: A string which specifies what value to initialize the
             simulation property to.
-         mode: A string specifiying what style of initialization should be
+         mode: A string specifying what style of initialization should be
             used to read the data.
          units: A string giving which unit the value is in.
          index: Which atom to initialize the value of.