This list includes 25 art supplies that start with O, from “Oblique pen holder” to “Oxide pigment”. These items are commonly used in drawing, calligraphy, painting, printmaking, sculpture, and mixed-media projects.
Art supplies that start with O are tangible tools and materials artists use to make visual work. For example, the oblique pen holder links modern calligraphy to historical lettering traditions.
Below you’ll find the table with Item, Usage, and Popular brands.
Item: The supply name and common variants, so you can quickly identify what to buy or look up.
Usage: Usage tells you how artists typically use the supply and when it suits your projects.
Popular brands: Lists one to three well-known manufacturers or product lines to help you compare options quickly.
Art supplies that start with O
| Name | Type | Common forms/measurements | Popular brands |
|---|---|---|---|
| Oil paint | Paint | tubes: 20–200 ml | Winsor & Newton, Gamblin, Rembrandt |
| Oil pastel | Drawing medium | sticks: 10–120 mm | Sennelier, Caran d’Ache, Sakura |
| Oil stick | Paint stick | sticks: 50–120 mm | Sennelier, R&F, Holbein |
| Oil medium | Medium | bottles: 30–500 ml | Liquin, Gamblin, Winsor & Newton |
| Oil varnish | Varnish | bottles: 50–500 ml | Gamvar, Winsor & Newton, Dammar |
| Oil ground | Primer | cans: 250–1,000 ml | Gamblin, Winsor & Newton |
| Odorless mineral spirits | Solvent | bottles: 250–1,000 ml | Gamsol (Winsor & Newton), Klean-Strip |
| Ox gall | Additive | bottles: 15–100 ml | Daniel Smith, Winsor & Newton |
| Oval brush | Brush | sizes: 0–12, 1/8–1 in | Winsor & Newton, Princeton, Da Vinci |
| Oblique pen holder | Tool | lengths: 5–8 in | Tachikawa, Speedball |
| Offset ink | Ink | cans: 500 g–1 kg | Sun Chemical, Sakata |
| One-Shot enamel | Paint (lettering) | cans/tubes: 1 oz–1 qt | One Shot |
| Open acrylics | Paint | tubes/jars: 75–200 ml | Golden, Liquitex |
| Onion-skin paper | Paper (tracing) | sheets: 8.5×11 in, A4 | Canson, Strathmore |
| Overhead transparency film | Surface (film) | sheets: 8.5×11 in, A4 | 3M, Avery |
| Ostrich quill | Tool | lengths: 6–12 in | Various craft suppliers |
| Oilstone | Tool (sharpening) | sizes: 100–300 mm | Norton, India |
| Oiled linen | Surface (canvas) | panels/rolls: 8×10–30×40 in | Claessens, Fredrix |
| Opaque watercolor (gouache) | Paint | tubes/half-pans: 14–250 ml | Winsor & Newton, Holbein |
| Oil-based marker | Marker | pens: fine–broad tips | Sharpie, Sakura |
| Oilcloth | Surface/protective | rolls/sheets: various sizes | Various manufacturers |
| Orbital sander | Tool | pads: 5–6 in | Bosch, Makita |
| Organza fabric | Surface/material | sheets: various sizes | Various textile brands |
| Oil primer | Primer | cans: 250–1,000 ml | Zinsser, Gamblin |
| Oxide pigment | Pigment | tubes/bags: 10–250 g | Kremer Pigments, Natural Pigments |
Descriptions
Oil paint
Slow-drying pigment in oil binder for traditional painting, glazing and impasto techniques.
Oil pastel
Soft, oily sticks for vibrant, blendable marks and mixed-media layering.
Oil stick
Solid oil paint in a crayon-like form for direct application and thick texture.
Oil medium
Liquids added to oil paint to alter gloss, drying time and flow for glazing or thinning.
Oil varnish
Clear protective finish that evens gloss, saturates color and protects oil paintings.
Oil ground
Oil-based primer applied to rigid supports to create a stable painting surface for oils.
Odorless mineral spirits
Low-odor solvent used to thin oil paint and clean brushes safely compared to traditional turpentine.
Ox gall
Natural wetting agent for watercolor and lithography that improves flow, lift and wetting of pigments.
Oval brush
Oval-headed brush for smooth washes, controlled blending and calligraphic strokes.
Oblique pen holder
Angled dip-pen holder favored for pointed-pen calligraphy and consistent ink flow.
Offset ink
Fast-drying printing ink for offset presses and relief printing; used in commercial and art printmaking.
One-Shot enamel
Durable, high-gloss sign painters’ enamel prized for lettering on metal and glass.
Open acrylics
Acrylics formulated with extended open time for oil-like blending while remaining water-soluble.
Onion-skin paper
Very thin, translucent paper used for tracing, overlays and pattern transfer.
Overhead transparency film
Clear plastic sheets originally for projectors; handy for stencils, overlays and mixed-media layers.
Ostrich quill
Large feather quill used historically for calligraphy and decorative mark-making.
Oilstone
Sharpening stone for honing chisels, blades and carving tools used in sculpture and woodworking.
Oiled linen
Fine linen primed with oil-based ground for a smooth, durable painting support.
Opaque watercolor (gouache)
Matte, highly pigmented water-based paint that dries opaque—popular for illustration and flat color.
Oil-based marker
Permanent markers with oil-based ink for durable marks on glass, metal and mixed media.
Oilcloth
Waxed or PVC-coated fabric used as a protective table covering or textured mixed-media material.
Orbital sander
Handheld power sander artists use to smooth panels, sculptures or prepare surfaces for painting.
Organza fabric
Sheer, lightweight fabric used in collage, textile art and translucent layering.
Oil primer
Oil-based primer that seals porous supports and improves adhesion for oil painting.
Oxide pigment
Stable inorganic pigments (iron oxides) used in paints, grounds and ceramic glazes.