diff --git a/NAMESPACE b/NAMESPACE
index 3b2a7bb7e5..abe38d251f 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -343,6 +343,7 @@ export(geom_abline)
 export(geom_area)
 export(geom_bar)
 export(geom_bin2d)
+export(geom_bin_2d)
 export(geom_blank)
 export(geom_boxplot)
 export(geom_col)
diff --git a/R/geom-bin2d.r b/R/geom-bin2d.r
index 0555996419..c5f6231e13 100644
--- a/R/geom-bin2d.r
+++ b/R/geom-bin2d.r
@@ -11,20 +11,20 @@
 #' @inheritParams layer
 #' @inheritParams geom_point
 #' @param geom,stat Use to override the default connection between
-#'   `geom_bin2d()` and `stat_bin2d()`.
+#'   `geom_bin_2d()` and `stat_bin_2d()`.
 #' @seealso [stat_binhex()] for hexagonal binning
 #' @examples
 #' d <- ggplot(diamonds, aes(x, y)) + xlim(4, 10) + ylim(4, 10)
-#' d + geom_bin2d()
+#' d + geom_bin_2d()
 #'
 #' # You can control the size of the bins by specifying the number of
 #' # bins in each direction:
-#' d + geom_bin2d(bins = 10)
-#' d + geom_bin2d(bins = 30)
+#' d + geom_bin_2d(bins = 10)
+#' d + geom_bin_2d(bins = 30)
 #'
 #' # Or by specifying the width of the bins
-#' d + geom_bin2d(binwidth = c(0.1, 0.1))
-geom_bin2d <- function(mapping = NULL, data = NULL,
+#' d + geom_bin_2d(binwidth = c(0.1, 0.1))
+geom_bin_2d <- function(mapping = NULL, data = NULL,
                        stat = "bin2d", position = "identity",
                        ...,
                        na.rm = FALSE,
@@ -45,3 +45,9 @@ geom_bin2d <- function(mapping = NULL, data = NULL,
     )
   )
 }
+
+#' @export
+#' @rdname geom_bin_2d
+#' @usage NULL
+geom_bin2d <- geom_bin_2d
+
diff --git a/R/stat-bin2d.r b/R/stat-bin2d.r
index 5429aea67d..dd1ed1b77d 100644
--- a/R/stat-bin2d.r
+++ b/R/stat-bin2d.r
@@ -4,7 +4,7 @@
 #'   horizontal directions. Overrides `bins` if both set.
 #' @param drop if `TRUE` removes all cells with 0 counts.
 #' @export
-#' @rdname geom_bin2d
+#' @rdname geom_bin_2d
 #' @section Computed variables:
 #' \describe{
 #'   \item{count}{number of points in bin}
@@ -41,7 +41,7 @@ stat_bin_2d <- function(mapping = NULL, data = NULL,
 
 
 #' @export
-#' @rdname geom_bin2d
+#' @rdname geom_bin_2d
 #' @usage NULL
 stat_bin2d <- stat_bin_2d
 
diff --git a/man/geom_bin2d.Rd b/man/geom_bin_2d.Rd
similarity index 95%
rename from man/geom_bin2d.Rd
rename to man/geom_bin_2d.Rd
index 884c62d01a..131d24942f 100644
--- a/man/geom_bin2d.Rd
+++ b/man/geom_bin_2d.Rd
@@ -1,12 +1,13 @@
 % Generated by roxygen2: do not edit by hand
 % Please edit documentation in R/geom-bin2d.r, R/stat-bin2d.r
-\name{geom_bin2d}
+\name{geom_bin_2d}
+\alias{geom_bin_2d}
 \alias{geom_bin2d}
 \alias{stat_bin_2d}
 \alias{stat_bin2d}
 \title{Heatmap of 2d bin counts}
 \usage{
-geom_bin2d(
+geom_bin_2d(
   mapping = NULL,
   data = NULL,
   stat = "bin2d",
@@ -75,7 +76,7 @@ that define both data and aesthetics and shouldn't inherit behaviour from
 the default plot specification, e.g. \code{\link[=borders]{borders()}}.}
 
 \item{geom, stat}{Use to override the default connection between
-\code{geom_bin2d()} and \code{stat_bin2d()}.}
+\code{geom_bin_2d()} and \code{stat_bin_2d()}.}
 
 \item{bins}{numeric vector giving number of bins in both vertical and
 horizontal directions. Set to 30 by default.}
@@ -115,15 +116,15 @@ Learn more about setting these aesthetics in \code{vignette("ggplot2-specs")}.
 
 \examples{
 d <- ggplot(diamonds, aes(x, y)) + xlim(4, 10) + ylim(4, 10)
-d + geom_bin2d()
+d + geom_bin_2d()
 
 # You can control the size of the bins by specifying the number of
 # bins in each direction:
-d + geom_bin2d(bins = 10)
-d + geom_bin2d(bins = 30)
+d + geom_bin_2d(bins = 10)
+d + geom_bin_2d(bins = 30)
 
 # Or by specifying the width of the bins
-d + geom_bin2d(binwidth = c(0.1, 0.1))
+d + geom_bin_2d(binwidth = c(0.1, 0.1))
 }
 \seealso{
 \code{\link[=stat_binhex]{stat_binhex()}} for hexagonal binning