diff --git a/esphome/components/ili9xxx/display.py b/esphome/components/ili9xxx/display.py
index af8141f9fc..b3fe8b2b41 100644
--- a/esphome/components/ili9xxx/display.py
+++ b/esphome/components/ili9xxx/display.py
@@ -66,7 +66,6 @@ MODELS = {
     "ST7789V": ili9xxx_ns.class_("ILI9XXXST7789V", ILI9XXXDisplay),
     "S3BOX": ili9xxx_ns.class_("ILI9XXXS3Box", ILI9XXXDisplay),
     "S3BOX_LITE": ili9xxx_ns.class_("ILI9XXXS3BoxLite", ILI9XXXDisplay),
-    "WSPICOLCD": ili9xxx_ns.class_("ILI9XXXWSPICOLCD", ILI9XXXDisplay),
 }
 
 COLOR_ORDERS = {
@@ -79,7 +78,6 @@ COLOR_PALETTE = cv.one_of("NONE", "GRAYSCALE", "IMAGE_ADAPTIVE")
 CONF_LED_PIN = "led_pin"
 CONF_COLOR_PALETTE_IMAGES = "color_palette_images"
 CONF_INVERT_DISPLAY = "invert_display"
-CONF_18BIT_MODE = "18bit_mode"
 
 
 def _validate(config):
@@ -141,7 +139,6 @@ CONFIG_SCHEMA = cv.All(
                 "'invert_display' has been replaced by 'invert_colors'"
             ),
             cv.Optional(CONF_INVERT_COLORS): cv.boolean,
-            cv.Optional(CONF_18BIT_MODE): cv.boolean,
             cv.Optional(CONF_COLOR_ORDER): cv.one_of(*COLOR_ORDERS.keys(), upper=True),
             cv.Exclusive(CONF_ROTATION, CONF_ROTATION): validate_rotation,
             cv.Exclusive(CONF_TRANSFORM, CONF_ROTATION): cv.Schema(
@@ -244,6 +241,3 @@ async def to_code(config):
 
     if CONF_INVERT_COLORS in config:
         cg.add(var.invert_colors(config[CONF_INVERT_COLORS]))
-
-    if CONF_18BIT_MODE in config:
-        cg.add(var.set_18bit_mode(config[CONF_18BIT_MODE]))
diff --git a/esphome/components/ili9xxx/ili9xxx_display.cpp b/esphome/components/ili9xxx/ili9xxx_display.cpp
index 2844856246..ab577b3875 100644
--- a/esphome/components/ili9xxx/ili9xxx_display.cpp
+++ b/esphome/components/ili9xxx/ili9xxx_display.cpp
@@ -34,9 +34,6 @@ void ILI9XXXDisplay::setup() {
     mad |= MADCTL_MY;
   this->send_command(ILI9XXX_MADCTL, &mad, 1);
 
-  mad = this->is_18bitdisplay_ ? 0x66 : 0x55;
-  this->send_command(ILI9XXX_PIXFMT, &mad, 1);
-
   this->x_low_ = this->width_;
   this->y_low_ = this->height_;
   this->x_high_ = 0;
diff --git a/esphome/components/ili9xxx/ili9xxx_display.h b/esphome/components/ili9xxx/ili9xxx_display.h
index c470f1e75d..590be3e364 100644
--- a/esphome/components/ili9xxx/ili9xxx_display.h
+++ b/esphome/components/ili9xxx/ili9xxx_display.h
@@ -53,9 +53,9 @@ class ILI9XXXDisplay : public display::DisplayBuffer,
       addr += num_args;
     }
   }
-  float get_setup_priority() const override;
 
   void set_dc_pin(GPIOPin *dc_pin) { dc_pin_ = dc_pin; }
+  float get_setup_priority() const override;
   void set_reset_pin(GPIOPin *reset) { this->reset_pin_ = reset; }
   void set_palette(const uint8_t *palette) { this->palette_ = palette; }
   void set_buffer_color_mode(ILI9XXXColorMode color_mode) { this->buffer_color_mode_ = color_mode; }
@@ -67,10 +67,7 @@ class ILI9XXXDisplay : public display::DisplayBuffer,
     this->offset_x_ = offset_x;
     this->offset_y_ = offset_y;
   }
-  void set_18bit_mode(bool mode) { this->is_18bitdisplay_ = mode; };
-
   void invert_colors(bool invert);
-
   void command(uint8_t value);
   void data(uint8_t value);
   void send_command(uint8_t command_byte, const uint8_t *data_bytes, uint8_t num_data_bytes);
@@ -212,10 +209,5 @@ class ILI9XXXS3BoxLite : public ILI9XXXDisplay {
   ILI9XXXS3BoxLite() : ILI9XXXDisplay(INITCMD_S3BOXLITE, 320, 240, true) {}
 };
 
-class ILI9XXXWSPICOLCD : public ILI9XXXDisplay {
- public:
-  ILI9XXXWSPICOLCD() : ILI9XXXDisplay(INITCMD_WSPICOLCD, 320, 480, true) {}
-};
-
 }  // namespace ili9xxx
 }  // namespace esphome
diff --git a/esphome/components/ili9xxx/ili9xxx_init.h b/esphome/components/ili9xxx/ili9xxx_init.h
index 0bf1d5761d..a74824052f 100644
--- a/esphome/components/ili9xxx/ili9xxx_init.h
+++ b/esphome/components/ili9xxx/ili9xxx_init.h
@@ -316,28 +316,6 @@ static const uint8_t PROGMEM INITCMD_ST7789V[] = {
   0x00                                   // End of list
 };
 
-static const uint8_t PROGMEM INITCMD_WSPICOLCD[] = {
-ILI9XXX_SLPOUT, 0x80,
-ILI9XXX_PIXFMT, 1, 0x66,
-ILI9XXX_PWCTR1, 2, 0x17, 0x15, // VRH1 VRH2 -ok
-ILI9XXX_PWCTR2, 1, 0x41, // VGH, VGL - ok
-ILI9XXX_PWCTR3, 1, 0x44,
-//ILI9XXX_VMCTR1, 4, 0x00, 0x00, 0x00, 0x00,
-ILI9XXX_VMCTR1, 3, 0x00, 0x12, 0x80, // nVM VCM_REG VCM_REG_EN - not ok?
-ILI9XXX_IFMODE, 1, 0x00, // -ok
-ILI9XXX_FRMCTR1, 1, 0xA0, // Frame rate = 60Hz -- seems to help the background! -ok
-ILI9XXX_INVCTR, 1, 0x02, // Display Inversion Control = 2dot - ok
-ILI9XXX_DFUNCTR, 2, 0x02, 0x02, // Nomal scan -ok
-ILI9XXX_ADJCTL3, 4, 0xA9, 0x51, 0x2C, 0x82, // Adjust Control 3
-ILI9XXX_GMCTRP1,15, 0x00, 0x03, 0x09, 0x08, 0x16, 0x0A, 0x3F, 0x78, 0x4C, 0x09, 0x0A, 0x08, 0x16, 0x1A, 0x0F,
-ILI9XXX_GMCTRN1,15, 0x00, 0x16, 0x19, 0x03, 0x0F, 0x05, 0x32, 0x45, 0x46, 0x04, 0x0E, 0x0D, 0x35, 0x37, 0x0F,
-
-ILI9XXX_INVON, 0x80,
-ILI9XXX_MADCTL, 1, 0x48,
-ILI9XXX_DISPON, 0x80,
-0x00 // End of list
-};
-
 // clang-format on
 }  // namespace ili9xxx
 }  // namespace esphome