diff --git a/base/broadcast.jl b/base/broadcast.jl
index 90453ccf19aa3..d26613233a271 100644
--- a/base/broadcast.jl
+++ b/base/broadcast.jl
@@ -338,7 +338,7 @@ function flatten(bc::Broadcasted)
     # concatenate the nested arguments into {a, b, c, d}
     args = cat_nested(bc)
     # build a tuple of functions `makeargs`. Its elements take
-    # the whole "flat" argument list and and generate the appropriate
+    # the whole "flat" argument list and generate the appropriate
     # input arguments for the broadcasted function `f`, e.g.,
     #          makeargs[1] = ((w, x, y, z)) -> w
     #          makeargs[2] = ((w, x, y, z)) -> g(x, y)
diff --git a/stdlib/Profile/src/Allocs.jl b/stdlib/Profile/src/Allocs.jl
index 59399b1f21bb3..a1cee98871011 100644
--- a/stdlib/Profile/src/Allocs.jl
+++ b/stdlib/Profile/src/Allocs.jl
@@ -40,7 +40,7 @@ end
     Profile.Allocs.@profile [sample_rate=0.1] expr
 
 Profile allocations that happen during `expr`, returning
-both the result and and AllocResults struct.
+both the result and AllocResults struct.
 
 A sample rate of 1.0 will record everything; 0.0 will record nothing.
 
diff --git a/stdlib/REPL/src/REPL.jl b/stdlib/REPL/src/REPL.jl
index bb5915c192b6e..f78f318d268e1 100644
--- a/stdlib/REPL/src/REPL.jl
+++ b/stdlib/REPL/src/REPL.jl
@@ -962,7 +962,7 @@ end
 
 find_hist_file() = get(ENV, "JULIA_HISTORY",
                        !isempty(DEPOT_PATH) ? joinpath(DEPOT_PATH[1], "logs", "repl_history.jl") :
-                       error("DEPOT_PATH is empty and and ENV[\"JULIA_HISTORY\"] not set."))
+                       error("DEPOT_PATH is empty and ENV[\"JULIA_HISTORY\"] not set."))
 
 backend(r::AbstractREPL) = r.backendref