diff --git a/esphome/components/ethernet/__init__.py b/esphome/components/ethernet/__init__.py
index 5d6af4490e..670116bdb9 100644
--- a/esphome/components/ethernet/__init__.py
+++ b/esphome/components/ethernet/__init__.py
@@ -113,7 +113,6 @@ CLK_MODES_DEPRECATED = {
 }
 
 SPI_INTERFACE_MAP = {
-    "spi1": "SPI1_HOST",
     "spi2": "SPI2_HOST",
     "spi3": "SPI3_HOST",
 }