Alphabet is el alfabeto in Spanish, but you can also say el abecedario which is a word made up of the first three letters of the alphabet
You may be wondering about letters with accents like á, é, í, ó, and ú or the rare dieresis, ü. These are not considered separate letters.
For many years this was the official Spanish alphabet:
a, b, c, ch, d, e, f, g, h, i, j, k, l, ll, m, n, ñ, o, p, q, r, s, t, u, v, w, x, y, z
So in older Spanish dictionaries, words beginning with “ch” are listed in a separate section after the rest of the “c” words, and words beginning with “ll” are listed after the rest of the “l” words. However, in 2010 the Real Academia Española, which is basically in charge of the official Spanish language, decided that “ch” and “ll” should no longer be considered distinct letters. This leaves us with a 27-letter alphabet: a, b, c, d, e, f, g, h, i, j, k, l, m, n, ñ, o, p, q, r, s, t, u, v, w, x, y, z