# Castillo

> English word · Proper noun · frequency rank #24,108

## Definitions
1. A habitational surname from Spanish, from Spanish castillo (“castle”).
2. A surname from French, a rare variant of Castillon.

## Easily confused with
- **Costello** (https://plainspell.com/en/vs/castillo-vs-costello)
- **Castile** (https://plainspell.com/en/vs/castile-vs-castillo)
- **Carrillo** (https://plainspell.com/en/vs/carrillo-vs-castillo)

## Common misspellings (10)
`acstillo`, `casitllo`, `casstillo`, `castilo`, `castilol`, `castlilo`, `casttillo`, `catsillo`, `ccastillo`, `csatillo`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/castillo