This is a list of first names that also have a meanings as regular words. It began as an amalgamation of two separate lists I found at Knowgramming and wiki.answers.com and has grown over the last year as I came across new ones. Feel free to add to the list in the comments section.

al - indian mulberry
alan - a large hunting dog
alec - a herring
alma - an egyptian girl who sings
almah - an egyptian girl who sings and dances professionally
amber - fossilized resin
amy - vial of amyl nitrate
angel - a divine spirit
angus - breed of cattle
ana - an item of data
anna - a former coin of india
art - creative works
ash - a type of tree
august - venerable
ava - of all; at all
barb - a sharp outcropping
bailey - a castle courtyard
bart - a rank of honor
basil - an aromatic herb
beau - boyfriend
belle - an attractive woman
ben - parlor
benjamin - benzoine
benny - an amphetamine tablet
bertha - a wide collarbeth; a hebrew letter
beth - hebrew letter
betty - pear-shaped bottle
biff - to hit
bill - a duck's beak
billy - male goat
bing - a heap or pile
bo - variant of beau
bob - to move up and down
bobby - a policeman
bonnie - beautiful
bonny - beautiful
brad - a tack
brant - small variety of goose
brent - small variety of goose
bret - type of fish
brook - small stream
bubba - brother, close friend
bud - partly opened flower
buddy - close friend
bunny - rabbit
burl - knotty outgrowth on tree
buster - informal term for another person
cam - mechanical device
candy - sweets
carl - a peasant
carol - to sing joyously
carter - one that carts
cat - feline creature
celeste - a keyboard instrument
chad - a scrap of paper
chance - risk
chandler - candle maker
charity - generosity
charley - a fool
charlie - a fool
chase - pursue; printing frame
christian - follower of christ
christie - a skiing turn
christy - a skiing turn
chuck - to throw
clarence - a closed carriage
clay - to treat with clay
cliff - a high ledge
colleen - an Irish girl
cooper - barrel maker
coral - marine growth
corky - corklike
crystal - a form of pure solid mineral
dahlia - type of plant
daisy - a flower
dale - a valley
dalton - a unit of atomic mass
dan - martial arts level
daphne - a flowering shrub
davy - a safety lamp
dawn - sunrise
dean - a head of faculty
deb - a debutante
dee - a metal fastener
delilah - seductive woman
dell - a small valley
derrick - crane type
devon - one of a breed of cattle
dexter - situated on the right
dick - a detective
dirk - a small knife
dolly - a wheeled platform
dom - a title given to certain monks
don - to put on
donna - lady
dot - a tiny round mark
dotty - crazy
drew - had drawn
dusty - covered in dust
earl - a british nobleman
ed - education
eddy - to move against the current
ember - a glowing, hot, coal
erica - a shrub of the heath family
eve - the night before
fagin - a criminal mentor
faith - belief or trust
fanny - the buttocks
fawn - a young deer
fay - to join closely
felicity - happiness
fern - a flowerless vascular plant
flo - an arrow
flora - plant life
florence - a gold coin
florida - an american state
flossie - a floozy
ford - to cross by wading
forest - large group of trees
frank - direct, honest
franklin - a medeival english landowner
fritz - a non-functioning state
gabby - talkative
gene - a part of the dna
gilbert - a unit of magnetomotive force
ginger - a flavorful spice
glen - a small valley
gloria - a halo
gore - to pierce with a horn or tusk
grace - to give beauty to
graham - whole wheat flour
grant - to bestow upon
gray - the mixture of black and white
guy - to ridicule
hale - healthy
hank - to fasten a sail
harry - to pillage
hazel - a type of nut tree
heath - uncultivated land
hector - to bully
henry - a unit of inductance
herb - a flowering plant with a non-woody stem
herby - abounding in herbs
holly - a tree or shrub
hope - desire or expectation
hunter - predator
iris - part of the eye
ivy - an ornate, climbing plant
jack - to raise with a type of lever
jacky - a sailor
jade - to weary
jake - alright; okay
jane - type of cloth
jasmine - fragrant flower
jasper - a semi-precious stone
jay - a corvine bird
jean - a durable cotton fabric
jen - philosophical love for humanity
jenny - a female donkey
jeroboam - a wine bottle
jerry - a german soldier
jersey - a close-fitting knitted shirt
jess - leg-leash for a hawk
jesse - to fasten straps around the legs of
jill - a unit of liquid measure
jimmy - to pry open
jo - a girlfriend
joannes - a portuguese coin
joe - a fellow
joey - a young kangaroo
john - toilet
johnny - a sleeveless hospital gown
jones - a drug addiction
jordan - a type of container
joseph - a woman's long cloak
josh - to tease
joy - to rejoice
judas - a peephole
kat - an evergreen shrub
kate- a type of finch
kay - the letter k
kelly - a bright green color
ken - to know
kent - knew
kerry - an irish breed of cattle
king - male leader of a monarchy
kip - to sleep
kirk - church (scottish)
kit - to equip
kitty - a pool of money
kris - a short sword
lacey - lacy
lance - to pierce with a lance
lars - white-handed gibbons
laura - a type of monastery
laurel - a type of tree
lea - a meadow
lee - to shelter from the wind
lew - lukewarm
liana - a climbing vine
lily - a flower
louie - a lieutenant
louis - a former gold coin of france
mac - a raincoat
mae - more
mamie - a tropical tree
marc - the residue after a fruit has been pressed
marcel - to make a deep soft wave in the hair
marge - a margin
maria - dark area on the moon or planet
marigold - a flowering plant
marina - docking for small boats
mark - to make an impression upon
marshall - to put in proper order
martin - a bird of the swallow family
marvy - marvelous
maryjane - a style of shoe
mason - to build with stone or brick
matilda - a hobo's bundle
matt - to produce a dull finish on
max - the greatest extent or amount
maxwell - a unit of magnetic flux
may - a term of permission
mel - honey
melody - an agreeable succession of musical sounds
melody - a tune
mercy - compassion
merl - a blackbird
merle - a blackbird
merlin - a european falcon
mick - an irishman
mickey - a drugged drink
mike - microphone
miles - units of linear measurement
miller - one that mills
milt - fish sperm
milty - full of milt
mim - primly demure
minnie - mother, mom
minny - a minnow
mo - a moment
molly - a tropical fish
morgan - a unit of distance between genes
morris - an english folk dance
mort - a note sounded on a hunting horn
nan - a round flat bread
nat - not at
nellie - an effeminate male
nelly - an effeminate male
nelson - a wrestling hold
nestor - a wise old man
newt - a small salamander
newton - a unit of force
nick - a shallow cut
noel - a christmas card
norm - a standard
olive - fruit or tree type
otto - fragrant oil
page - sheet of paper
paige - assistant
pam - (cards) the jack of clubs
parker - one who parks cars
parry - to ward off or evade
pat - to touch lightly
patsy - rube, stooge
pattie - a thin, flat cake of food
patty - chopped food pressed flat
pearl - a jewel found in mollusks
penny - a small unit of currency
perry - pear cider
peter - to diminish
phil - greek prefix for "love"
pia - a membrane of the brain
pierce - to cut or pass into or through
pike - a long spear
pinky - the little finger
piper - one who plays a pipe
ralph - to vomit
randy - lustful
ray - winged sea creature
red - a primary color
reed - to fasten with reeds
reg - a regulation
regina - a queen
rex - a king
rich - having wealth
rick - to pile hay in stacks
rip - cause to tear
rob - to steal
robin - a songbird
rocky - stony
rod - a stick or staff
roger - a pirate flag
romeo - a male lover
rose - a red flower
rosemary - an herb
rosy - pink or pinkish red
roy - king, royal (obs.)
rube - a rustic
ruby - a precious red gem
russel - ribbed wool and cotton
rusty - covered with rust
ruth - compassion
sabin - a unit of sound absorption
saffron - flower used for coloring and flavoring food; yellow-orange color
sage - a profoundly wise person
sal - salt
sally - to trail blaze
sam - a type of guided missile
sandy - covered with sand
saul - a soul
savannah - grassy plain
sawyer - one that saws wood
scarlet - a deep red hue
scot - person from scotland
shaw - to show
shawn - an early woodwind instrument
shea - an african tree
sheila - a young woman
shelly - abounding in seashells
sherry - a kind of wine
sibyl - female prophet or witch
simony - the buying or selling of a church office
sissy - a weak or timid person
skip - repeatedly deflect; omit
smith - a worker in metals
sol - the fifth note of diatonic scale
sonny - a small boy
sophy - a persian ruler
spencer - a trysail
spike - a long thick nail
spud - to remove with a spade
stein - a beer mug
stella - a $4 US coin from 1880
stew - a thick soup
sue - to litigate against
sunny - well lit by the sun, bright
tab - to name or designate
tad - a small boy
tammie - a fabric of mixed fibers
tammy - a fabric of mixed fibers
ted - to spread for drying
teddy - a feminine undergarment
terry - absorbent fabric
thatcher - one that thatches
tiff - a minor emotional dispute
tiffany - a thin, mesh fabric
timothy - type of grass
tip - to tilt
toby - a type of drinking mug
tod - a unit of weight for wool
tom - a male animal
tommy - a loaf of bread
tony - stylish
tori - donut-shaped solids
troy - a system of weights
tuck - fold a material under itself to tighten
tucker - tire, exhaust
turner - one that turns
van - a type of motor vehicle
vera - very
veronica - a plant of the figwort family
victor - winner
victoria - a light carriage
viola - a stringed instrument
violet - a flower
wally - something visually pleasing
ward - to turn aside
warren - a group of rabbits; their dwelling
wade - to walk in water
webster - a weaver
will - intent
willy - to willow
wilt - to become limp
woody - resembling wood
wynn - letter in Old English alphabet
yarrow - a wildflower