What does Rian mean?
Rian /ri-an/ as a boys' name (also used as girls' name Rian). Rian's root is Gaelic, and Rian means "king". Rian is an alternate spelling, with the prefix Ri-, of Ryan (Gaelic): also possibly (Gaelic) "water".
How popular is Rian?
Rian is a rare given name for males but a very popular surname for all people (#62577 out of 150436, Top 42%). (2000 U.S. Census)
Shown below is the birth name popularity of Rian for boys. Rian reached its peak position of #33 in Ireland in 2012, and is currently at #37. (Top 100 Baby Names Records, 2013)
Below is a graphed analysis of the popularity of the boy name Rian and corresponding names. Prominent variation forms of Rian are Ryan (#37 last year) and Ryne. Other variants, like Rion, are seldom used. These forms of Rian were favored by parents in 1990 (adoption of 0.45%) and are somewhat less popular today (adoption 0.32%, ▼29.3%), with the version Ryne becoming less in vogue. Ryan is the most chic name for newborns among these. (Top 1000 Baby Names Records, 2014)
Rian is pronounced similarly to Rain, Raine, Rane, Rayne, Ren, Renne, Roan, Roane, Ron▼, Ronn, Roone, Rowan▲, Rowen▲, Royan and Rune. Other recommended similar baby names are Cian, Eian, Gian, Jian, Kian▲, Ram, Rice, Riyad, Rohan▲ and Ronan▲. These names tend to be more commonly used than Rian.