Lillian peaked once in 1920 at No. 8, then disappeared from the American naming top 100 for nearly seventy years, then came back. The 2025 ranking of No. 54 is the second peak of a name with one of the longest revival arcs in modern SSA records, and the second peak is now mature enough to be considered classic in its own right.
Latin root, English flowering
Lillian developed in late-medieval English usage as an elaborated form of Lily, derived from the Latin lilium (the flower) and ultimately from the Greek leirion. The name had earlier appeared as a variant of Elizabeth (specifically the diminutive Lilian, which reduced Elizabeth through the Eliza-Lily pathway), but the modern Lillian reads primarily as a flower-name with formal length added.
The first major American peak came at the turn of the twentieth century. Lillian was top-10 in the 1900s and 1910s, alongside Mary, Margaret, Helen, and Florence. The cohort represented the formal-classic register of late-Victorian and Edwardian American girl naming, and Lillian held its place in that register through the 1920 peak before beginning a steep mid-century descent.
The fall and the long return
By 1960 Lillian had dropped out of the top 500. By 1980 it was outside the top 1000 — effectively absent from contemporary naming for an entire generation. The return began in the late 1990s and accelerated through the 2000s, lifting Lillian back into the top 50 by 2008.
The revival followed the broader pattern of grandmother-name comeback that produced Eleanor, Evelyn, and Violet. Names that had been dormant for two generations crossed the great-grandmother threshold, where they no longer evoked the namer's own grandmother (and thus felt dated) but the namer's great-grandmother (and thus felt vintage and fresh). Lillian sits squarely in that revival cohort.
Lily, Lilly, and the nickname economy
Lillian's nickname Lily has been a top-100 name in its own right since 2002 and is currently around No. 38. This creates a particular dynamic: parents shortlisting Lillian are typically also shortlisting Lily as a standalone first name, and the choice often comes down to whether they want the formal-on-paper, casual-in-life dynamic, or the casual-on-paper, casual-in-life directness.
Counter-reading: there is a fair argument that Lillian is doing more work than Lily without much practical benefit if the child will go by Lily anyway. The counter-argument is that the formal version on the birth certificate matters in adult contexts (legal documents, professional names) in ways that affect a child's name capital over a lifetime. Both readings are defensible.
For sibling pairs, Lillian works with other classic-revival girls' names: Lillian and Eleanor, Lillian and Charlotte, Lillian and Violet. Middle-name combinations skew short and classic for balance: Lillian Rose, Lillian Grace, Lillian Mae. The broader 1920s revival cohort remains a strong current category.