Declan Osullivan
Name meaning, origin and global statistics
Declan Osullivan is a name combining Celtic origins, bringing together "man of prayer" (Declan) with "dark-eyed" (Osullivan). The first name Declan is a masculine given name of Celtic origin. From Irish Gaelic Deaglán, of uncertain meaning. Saint Declan of Ardmore was one of the pre-Patrician saints of Ireland. The surname Osullivan from Irish Ó Súilleabháin, possibly meaning 'dark-eyed.' The most common surname in Munster and one of the most common in Ireland overall. Declan is a well-known first name, carried by approximately 280K people globally, with the highest concentration in Ireland. The name Declan reached peak popularity in the 1985s, reflecting the naming trends of that era.
Etymology & Origin
First Name: Declan
Meaning: man of prayer
Celtic
From Irish Gaelic Deaglán, of uncertain meaning. Saint Declan of Ardmore was one of the pre-Patrician saints of Ireland.
Surname: Osullivan
Meaning: dark-eyed
Celtic
From Irish Ó Súilleabháin, possibly meaning 'dark-eyed.' The most common surname in Munster and one of the most common in Ireland overall.
Geographic Distribution
The first name Declan is distributed across the globe, with the highest concentrations in the following countries:
Popularity Over Time
Popularity of the name Declan by decade, based on birth registration data:
Name Variants & Related Names
The name Declan has several variants and related forms across different languages and cultures:
Variants of the surname Osullivan: O'Sullivan Sullivan Sulivan
Numerology
According to Pythagorean numerology, each letter in a name carries a numerical value. Here are the key numbers for Declan Osullivan:
Intuition and inspiration (Master Number 11). Amplifies spiritual awareness, creative vision and sensitivity.
Wisdom and introspection. A deep, analytical mind drawn to philosophy, spirituality and the search for truth.
Stability and hard work. Represents practicality, reliability and dedication — someone who builds solid foundations.
Numerology is a cultural tradition for exploring symbolism in names. Results are for entertainment purposes.
Frequently Asked Questions
- What is the origin of the first name Declan?
- The first name Declan originates from Celtic. From Irish Gaelic Deaglán, of uncertain meaning. Saint Declan of Ardmore was one of the pre-Patrician saints of Ireland.
- How common is the name Declan Osullivan?
- The first name Declan is shared by approximately 280K people worldwide. The surname Osullivan is among the most recognizable in its region of origin.
- Where is the name Declan most common?
- The name Declan is most prevalent in Ireland and surrounding regions.
- When was Declan most popular?
- The name Declan reached its peak popularity during the 1985s.