diff --git a/.github/scripts/spellcheck.words b/.github/scripts/spellcheck.words
index 5e534846c815bf..ca544c8056b4db 100644
--- a/.github/scripts/spellcheck.words
+++ b/.github/scripts/spellcheck.words
@@ -502,6 +502,7 @@ monospace
 MorphOS
 MPE
 MPL
+MPTCP
 mprintf
 MQTT
 mqtt
@@ -522,6 +523,7 @@ mTLS
 MUA
 multicwd
 multiparts
+multipath
 MultiSSL
 mumbo
 musedev
diff --git a/docs/cmdline-opts/Makefile.inc b/docs/cmdline-opts/Makefile.inc
index deb4c7c326dc1c..75855f54572b81 100644
--- a/docs/cmdline-opts/Makefile.inc
+++ b/docs/cmdline-opts/Makefile.inc
@@ -161,6 +161,7 @@ DPAGES = \
   max-redirs.md \
   max-time.md \
   metalink.md \
+  mptcp.md \
   negotiate.md \
   netrc-file.md \
   netrc-optional.md \
diff --git a/docs/cmdline-opts/mptcp.md b/docs/cmdline-opts/mptcp.md
new file mode 100644
index 00000000000000..37a5281f89d6db
--- /dev/null
+++ b/docs/cmdline-opts/mptcp.md
@@ -0,0 +1,41 @@
+---
+c: Copyright (C) Dorian Craps, <dorian.craps@student.vinci.be>
+SPDX-License-Identifier: curl
+Long: mptcp
+Added: 8.8.0
+Help: Enable Multipath TCP (MPTCP)
+Category: connection
+Multi: boolean
+See-also:
+  - tcp-fastopen
+Example:
+  - --mptcp $URL
+---
+
+# `--mptcp`
+
+Enables the use of Multipath TCP (MPTCP) for connections. MPTCP is an extension
+to the standard TCP that allows multiple TCP streams over different network
+paths between the same source and destination. This can enhance bandwidth and
+improve reliability by using multiple paths simultaneously.
+
+MPTCP is beneficial in networks where multiple paths exist between clients and
+servers, such as mobile networks where a device may switch between WiFi and
+cellular data or in wired networks with multiple Internet Service Providers.
+
+## Usage
+
+To use MPTCP for your connections, add the `--mptcp` option when using `curl'.
+
+## Requirements
+
+This feature is currently only supported on Linux starting from kernel 5.6. Only
+TCP connections are modified, hence this option does not effect HTTP/3 (QUIC)
+connections.
+
+The server you are connecting to must also support MPTCP. If not, the connection
+seamlessly falls back to TCP.
+
+## Availability
+
+The `--mptcp` option is available starting from `curl` version 8.8.0.
diff --git a/docs/libcurl/curl_easy_setopt.md b/docs/libcurl/curl_easy_setopt.md
index b80d0b6640efb9..32155c5ead4bbb 100644
--- a/docs/libcurl/curl_easy_setopt.md
+++ b/docs/libcurl/curl_easy_setopt.md
@@ -425,6 +425,10 @@ Path to a Unix domain socket. See CURLOPT_UNIX_SOCKET_PATH(3)
 
 Path to an abstract Unix domain socket. See CURLOPT_ABSTRACT_UNIX_SOCKET(3)
 
+## CURLOPT_MPTCP
+
+Enable Multipath TCP (MPTCP). See CURLOPT_MPTCP(3)
+
 # NAMES and PASSWORDS OPTIONS (Authentication)
 
 ## CURLOPT_NETRC
diff --git a/docs/libcurl/opts/CURLOPT_MPTCP.md b/docs/libcurl/opts/CURLOPT_MPTCP.md
new file mode 100644
index 00000000000000..9d0ffa3224e980
--- /dev/null
+++ b/docs/libcurl/opts/CURLOPT_MPTCP.md
@@ -0,0 +1,78 @@
+---
+c: Copyright (C) Dorian Craps, <dorian.craps@student.vinci.be>, et al.
+SPDX-License-Identifier: curl
+Title: CURLOPT_MPTCP
+Section: 3
+Source: libcurl
+See-also:
+  - CURLOPT_TCP_FASTOPEN (3)
+Protocol:
+  - All
+---
+
+# NAME
+
+CURLOPT_MPTCP - enable Multipath TCP
+
+# SYNOPSIS
+
+~~~c
+#include <curl/curl.h>
+
+CURLcode curl_easy_setopt(CURL *handle, CURLOPT_MPTCP, long enable);
+~~~
+
+# DESCRIPTION
+
+Pass a long as parameter set to 1L to enable or 0 to disable.
+
+MPTCP is an extension to the standard TCP that allows multiple TCP streams
+over different network paths between the same source and destination.
+This can enhance bandwidth and improve reliability by using multiple paths
+simultaneously.
+MPTCP is beneficial in networks where multiple paths exist between clients
+and servers, such as mobile networks where a device may switch between WiFi
+and cellular data or in wired networks with multiple Internet Service Providers.
+
+Enabling MPTCP can improve the performance and reliability of network requests,
+particularly in environments where multiple network paths (e.g., WiFi and
+cellular) are available.
+
+MPTCP support depends on the underlying operating system and network
+infrastructure. Some networks might drop unknown MPTCP, and its effectiveness
+varies based on the network configuration and conditions. If MPTCP is not
+supported by the network or the end server, the connection seamlessly falls back
+to TCP.
+
+# DEFAULT
+
+0
+
+# EXAMPLE
+
+~~~c
+int main(void)
+{
+  CURL *curl = curl_easy_init();
+  if(curl) {
+    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
+    curl_easy_setopt(curl, CURLOPT_MPTCP, 1L);
+    curl_easy_perform(curl);
+  }
+}
+~~~
+
+# AVAILABILITY
+
+Support for MPTCP in libcurl requires Linux 5.6 or later. Only TCP connections
+are modified, hence this option does not effect HTTP/3 (QUIC) connections.
+
+The features availability in libcurl can also depend on the version of libcurl.
+Added in 8.8.0.
+
+# RETURN VALUE
+
+Returns CURLE_OK if MPTCP is successfully enabled for the connection,
+otherwise returns an error code specific to the reason it could not be enabled,
+which might include lack of operating system support or libcurl not being built
+with MPTCP support.
diff --git a/docs/libcurl/opts/CURLOPT_TCP_FASTOPEN.md b/docs/libcurl/opts/CURLOPT_TCP_FASTOPEN.md
index 42b44a5674dd69..41d9835b78d2c0 100644
--- a/docs/libcurl/opts/CURLOPT_TCP_FASTOPEN.md
+++ b/docs/libcurl/opts/CURLOPT_TCP_FASTOPEN.md
@@ -6,6 +6,7 @@ Section: 3
 Source: libcurl
 See-also:
   - CURLOPT_SSL_FALSESTART (3)
+  - CURLOPT_MPTCP (3)
 Protocol:
   - All
 ---
diff --git a/docs/libcurl/opts/Makefile.inc b/docs/libcurl/opts/Makefile.inc
index bf5ea7645faac5..5cefb148a031b3 100644
--- a/docs/libcurl/opts/Makefile.inc
+++ b/docs/libcurl/opts/Makefile.inc
@@ -245,6 +245,7 @@ man_MANS =                                      \
   CURLOPT_MAXREDIRS.3                           \
   CURLOPT_MIME_OPTIONS.3                        \
   CURLOPT_MIMEPOST.3                            \
+  CURLOPT_MPTCP.3                               \
   CURLOPT_NETRC.3                               \
   CURLOPT_NETRC_FILE.3                          \
   CURLOPT_NEW_DIRECTORY_PERMS.3                 \
diff --git a/docs/libcurl/symbols-in-versions b/docs/libcurl/symbols-in-versions
index e5531df92cff01..40a5c8d19483e8 100644
--- a/docs/libcurl/symbols-in-versions
+++ b/docs/libcurl/symbols-in-versions
@@ -710,6 +710,7 @@ CURLOPT_MAXREDIRS               7.5
 CURLOPT_MIME_OPTIONS            7.81.0
 CURLOPT_MIMEPOST                7.56.0
 CURLOPT_MUTE                    7.1           7.8         7.15.5
+CURLOPT_MPTCP                   8.8.0
 CURLOPT_NETRC                   7.1
 CURLOPT_NETRC_FILE              7.11.0
 CURLOPT_NEW_DIRECTORY_PERMS     7.16.4
diff --git a/docs/options-in-versions b/docs/options-in-versions
index d3513ff119d7f6..816436754c34a7 100644
--- a/docs/options-in-versions
+++ b/docs/options-in-versions
@@ -126,6 +126,7 @@
 --max-redirs                         7.5
 --max-time (-m)                      4.0
 --metalink                           7.27.0
+--mptcp                              8.8.0
 --negotiate                          7.10.6
 --netrc (-n)                         4.6
 --netrc-file                         7.21.5
diff --git a/include/curl/curl.h b/include/curl/curl.h
index 25b3836b4e5275..31427740994e12 100644
--- a/include/curl/curl.h
+++ b/include/curl/curl.h
@@ -2213,6 +2213,9 @@ typedef enum {
   /* set ECH configuration  */
   CURLOPT(CURLOPT_ECH, CURLOPTTYPE_STRINGPOINT, 325),
 
+  /* Set MPTCP */
+  CURLOPT(CURLOPT_MPTCP, CURLOPTTYPE_LONG, 326),
+
   CURLOPT_LASTENTRY /* the last unused */
 } CURLoption;
 
diff --git a/lib/cf-socket.c b/lib/cf-socket.c
index eeae5f9950c542..bf458b4145fb98 100644
--- a/lib/cf-socket.c
+++ b/lib/cf-socket.c
@@ -244,6 +244,13 @@ void Curl_sock_assign_addr(struct Curl_sockaddr_ex *dest,
     dest->socktype = SOCK_STREAM;
     dest->protocol = IPPROTO_IP;
     break;
+  case TRNSPRT_MPTCP:
+#ifndef IPPROTO_MPTCP
+#define IPPROTO_MPTCP 262
+#endif
+    dest->socktype = SOCK_STREAM;
+    dest->protocol = IPPROTO_MPTCP;
+    break;
   default: /* UDP and QUIC */
     dest->socktype = SOCK_DGRAM;
     dest->protocol = IPPROTO_UDP;
@@ -1602,6 +1609,16 @@ CURLcode Curl_cf_tcp_create(struct Curl_cfilter **pcf,
     result = CURLE_OUT_OF_MEMORY;
     goto out;
   }
+
+  if(data->set.mptcp) {
+#ifdef __linux__
+    transport = TRNSPRT_MPTCP;
+#else
+    result = CURLE_UNSUPPORTED_PROTOCOL;
+    goto out;
+#endif
+  }
+
   cf_socket_ctx_init(ctx, ai, transport);
 
   result = Curl_cf_create(&cf, &Curl_cft_tcp, ctx);
diff --git a/lib/easyoptions.c b/lib/easyoptions.c
index c79d136707e4d4..85fe36528904bf 100644
--- a/lib/easyoptions.c
+++ b/lib/easyoptions.c
@@ -179,6 +179,7 @@ struct curl_easyoption Curl_easyopts[] = {
   {"MAX_SEND_SPEED_LARGE", CURLOPT_MAX_SEND_SPEED_LARGE, CURLOT_OFF_T, 0},
   {"MIMEPOST", CURLOPT_MIMEPOST, CURLOT_OBJECT, 0},
   {"MIME_OPTIONS", CURLOPT_MIME_OPTIONS, CURLOT_LONG, 0},
+  {"MPTCP", CURLOPT_MPTCP, CURLOT_LONG, 0},
   {"NETRC", CURLOPT_NETRC, CURLOT_VALUES, 0},
   {"NETRC_FILE", CURLOPT_NETRC_FILE, CURLOT_STRING, 0},
   {"NEW_DIRECTORY_PERMS", CURLOPT_NEW_DIRECTORY_PERMS, CURLOT_LONG, 0},
@@ -376,6 +377,6 @@ struct curl_easyoption Curl_easyopts[] = {
  */
 int Curl_easyopts_check(void)
 {
-  return ((CURLOPT_LASTENTRY%10000) != (325 + 1));
+  return ((CURLOPT_LASTENTRY%10000) != (326 + 1));
 }
 #endif
diff --git a/lib/setopt.c b/lib/setopt.c
index f719cc43dde297..d5d2091ee2e8d5 100644
--- a/lib/setopt.c
+++ b/lib/setopt.c
@@ -2940,6 +2940,9 @@ CURLcode Curl_vsetopt(struct Curl_easy *data, CURLoption option, va_list param)
     result = CURLE_NOT_BUILT_IN;
 #endif
     break;
+  case CURLOPT_MPTCP:
+    data->set.mptcp = TRUE;
+    break;
   case CURLOPT_SSL_ENABLE_NPN:
     break;
   case CURLOPT_SSL_ENABLE_ALPN:
diff --git a/lib/urldata.h b/lib/urldata.h
index 8bccffb0f59b20..55a5be97103c0b 100644
--- a/lib/urldata.h
+++ b/lib/urldata.h
@@ -801,6 +801,7 @@ struct ldapconninfo;
 #define TRNSPRT_UDP 4
 #define TRNSPRT_QUIC 5
 #define TRNSPRT_UNIX 6
+#define TRNSPRT_MPTCP 7
 
 /*
  * The connectdata struct contains all fields and variables that should be
@@ -1876,6 +1877,7 @@ struct UserDefined {
 #ifdef USE_ECH
   int tls_ech;      /* TLS ECH configuration  */
 #endif
+  BIT(mptcp); /* enable MPTCP support */
 };
 
 #ifndef CURL_DISABLE_MIME
diff --git a/src/tool_cfgable.h b/src/tool_cfgable.h
index 74d0c45f2ed121..5b930279de5c6f 100644
--- a/src/tool_cfgable.h
+++ b/src/tool_cfgable.h
@@ -292,6 +292,7 @@ struct OperationConfig {
     CLOBBER_NEVER, /* If the file exists, always fail */
     CLOBBER_ALWAYS /* If the file exists, always overwrite it */
   } file_clobber_mode;
+  bool mptcp;                     /* enable MPTCP support */
   struct GlobalConfig *global;
   struct OperationConfig *prev;
   struct OperationConfig *next;   /* Always last in the struct */
diff --git a/src/tool_getparam.c b/src/tool_getparam.c
index f56981a743d868..9f9ba0819483f4 100644
--- a/src/tool_getparam.c
+++ b/src/tool_getparam.c
@@ -200,6 +200,7 @@ typedef enum {
   C_MAX_REDIRS,
   C_MAX_TIME,
   C_METALINK,
+  C_MPTCP,
   C_NEGOTIATE,
   C_NETRC,
   C_NETRC_FILE,
@@ -482,6 +483,7 @@ static const struct LongShort aliases[]= {
   {"max-redirs",                 ARG_STRG, ' ', C_MAX_REDIRS},
   {"max-time",                   ARG_STRG, 'm', C_MAX_TIME},
   {"metalink",                   ARG_BOOL, ' ', C_METALINK},
+  {"mptcp",                      ARG_BOOL, ' ', C_MPTCP},
   {"negotiate",                  ARG_BOOL, ' ', C_NEGOTIATE},
   {"netrc",                      ARG_BOOL, 'n', C_NETRC},
   {"netrc-file",                 ARG_FILE, ' ', C_NETRC_FILE},
@@ -2794,6 +2796,9 @@ ParameterError getparameter(const char *flag, /* f or -long-flag */
         }
       }
       break;
+    case C_MPTCP: /* --mptcp */
+      config->mptcp = TRUE;
+      break;
     default: /* unknown flag */
       err = PARAM_OPTION_UNKNOWN;
       break;
diff --git a/src/tool_listhelp.c b/src/tool_listhelp.c
index 8429322045fa79..e0228ee513215f 100644
--- a/src/tool_listhelp.c
+++ b/src/tool_listhelp.c
@@ -381,6 +381,9 @@ const struct helptxt helptext[] = {
   {"    --metalink",
    "Process given URLs as metalink XML file",
    CURLHELP_MISC},
+  {"    --mptcp",
+   "Enable Multipath TCP (MPTCP)",
+   CURLHELP_CONNECTION},
   {"    --negotiate",
    "Use HTTP Negotiate (SPNEGO) authentication",
    CURLHELP_AUTH | CURLHELP_HTTP},
diff --git a/src/tool_operate.c b/src/tool_operate.c
index 9f14b3e5860353..437059a9f24123 100644
--- a/src/tool_operate.c
+++ b/src/tool_operate.c
@@ -1291,6 +1291,9 @@ static CURLcode single_transfer(struct GlobalConfig *global,
         if(config->tcp_fastopen)
           my_setopt(curl, CURLOPT_TCP_FASTOPEN, 1L);
 
+        if(config->mptcp)
+          my_setopt(curl, CURLOPT_MPTCP, 1L);
+
         /* where to store */
         my_setopt(curl, CURLOPT_WRITEDATA, per);
         my_setopt(curl, CURLOPT_INTERLEAVEDATA, per);